History Main / MomentKiller

* When {{Superboy}} and Wondergirl had their first kiss, WonderWoman out of nowhere grabs him by the collar and chucks him to the horizon.
* When Wondergirl (again) and {{Supergirl}} reunited in ''ComicBook/TeenTitans'' there was the extremely close hug, actual "[[LesYay I love you]]", leaning in... and being shot with a rocket launcher by Ravager, who apparently enjoys having invulnerable teammates.

* ''TeenTitans'' There were plenty of these in the series. Beast Boy and Raven had, not one but ''two'' of these. The first one was after a tender hug, Cyborg promptly threw a ball of dirty laundry at Beast Boy's head. ItMakesSenseInContext. The second was killed by Beast Boy himself, much to Raven's annoyance.

[[quoteright:350:[[{{Scrubs}} http://static.tvtropes.org/pmwiki/pub/images/Moment_Killer.jpg]]]]
[[caption-width-right:350:You know you have at least one friend like this.]]

** Done again in the beginning of TheDeathlyHallows Part One when Ginny asks Harry to zip up her dress. Then George walks into the kitchen...

* That's exactly what happens in ''{{Harry Potter and the Deathly Hallows}}'', when Ginny invites Harry to her bedroom to give him his [[IfYouKnowWhatIMean birthday present]]. How far they would've gone is debatable, but they clearly would've gone past "Thank you for the gift." if Ron hadn't shown up to assassinate the moment.
** In the film Ron is replaced by George, who [[CrowningMomentOfFunny knows exactly what he's doing]].

* When Wondergirl (again) and {{Supergirl}} reunited in ''ComicBook/TeenTitans'' there was the extremely close hug, actual "I love yous", leaning in... and being shot with a rocket launcher by Ravager, who apparently enjoys having invulnerable teammates.

* Louis in ''KangarooJack'', part of the RunningGag on his [[TheDitz Ditz]] / BornUnlicky character. Charlie lampshades it (quote needed).

** Perry the Platypus totally kills the moment for Doofenshmirtz when his date suffers from a bad case of cuteness proximity.

* A much earlier example of the meddling robot (a la [[StarWars C-3PO]]/[[{{Spaceballs}} Dot Matrix]]) appears in the Robert Sheckley short story ''Human Man's Burden''. Every time the man and the woman start edging towards expressing their true feelings, an obnoxious marrying-bot bursts in, ruining the moment. Some other robots finally physically restrain the intruder long enough to allow the couple to clinch.

* In episode 4 of the first Koihime Musou OVA, Kan'u agrees to sleep with Sousou in exchange of sparing the life of Bachou, who had tried to murder Sousou earlier in that episode. That night, the two are quite blatantly about to [[LesYay have sex]]... And then Sousou suffers ANOTHER attempt to her life, this time by an unknown assailant who sneaks in her tent from the ceiling. Moment Killing at its best there.

* ''DoctorWho'' - In a rheart-to-heart between the Doctor and the Master, The Doctor almost persuaded the Master to come and travel with him through the universe. The Master is going all teary-eyed and mellow, there's a declaration of affection on the Doctor's part -- and then Wilfred shouts his way into the conversation. [[MomentKiller Arg]].\\

* [[MahouSenseiNegima Kotarou]] [[http://www.mangafox.com/manga/mahou_sensei_negima/v25/c228/17.html manages to kill]] what even the [[FourthWallBreaking translator called]] a [[PortmanteauCoupleName [=NegiNodo=]]] moment, with some ill-timed comradery. [[TheMedic Konoka]], you could've left him partly TakenForGranite a ''little'' longer.

* In BakaToTestToShoukanjuu, when the whole building was falling down and everyone forgot that there was an ESB going on, Akihisa and Yuuji were saving their respective partners. Everyone was going awww [[spoiler: and suddenly, Yuuko Kinoshita just HAD to defeat Yuuji's summon. Class A won because of it.]]
* In KannazukiNoMiko, Himeko and Souma have their first kiss, when Himeko starts ''crying''.

* From {{Enchanted}}, during the ball scene, Robert and Giselle were [[DanceOfRomance dancing together]], including Robert singing softly in Giselle's ear (when he earlier claimed that he didn't sing), leaning quite close to each other, when Nancy and Edward interrupted them.

* Constantly occurring in the seventh season finale of ''{{Frasier}}'', as nearly every supporting character from the episode enters at one point or another, interrupting [[spoiler:Niles confessing his feelings for Daphne]].

* ''{{Alias}}''- Several moments between Sydney and Vaughn were killed: at the end of The Counteragent, Asst. Director Kendall interrupts a particularly tender moment between the two; at the beginning of Phase One, Weiss bursts into the "flirting corner" with exceptionally awful timing, [[spoiler: though they later [[CrowningMomentofAwesome fix]] [[TheyDo that]]]].

* Rumisiel plays the MomentKiller on Ash and Em in an early ''{{Misfile}}'' strip, sending their relationship straight down BelligerentSexualTension alley. And [[http://www.misfile.com/?page=1113 here]] we have Ash and Em having a significant moment, with Em just on the verge of saying that... "Y Helo Thar, Missi!"

* Several times in ''[=~Avatar: The Last Airbender~=]''. In "The Earth King", the group was parting ways for a little time, and Aang wanted to confess his feelings to Katara. Just as he said, "I kinda want to tell you something..." Sokka swings his arm around him and excitedly talks about where they are going.

*** Shipping aside, that moment also had the potential to trigger Zuko's HeelFaceTurn...

*** Very, ''very, VERY'' bad. *must unsee*
** And even later when Zuko sits between Aang and Katara when Aang wanted to sit next to Katara. Zuko is really bad at this.
*** Both this and the previous explained moment with Sokka earned Zuko the [[FanNickname nickname]], [[MemeticMutation "Prince Zuko: Master Cock-blocker."]]
** Runs in the family: Azula does it to Zuko and Mai during their sunset picnic.
*** Azula does it on PURPOSE. Zuko simply doesn't think. (He's older and [[IfYouKnowWhatIMean more experienced]] than most of the kids on the show, it's just that he's a bit too self-focused to realize other people might have relationships outside him.)

* Billy Joel's song [[http://www.youtube.com/watch?v=1bAKX2DIooA "Leave a Tender Moment Alone"]] is about this but the MomentKiller is the narrator himself (and in once case, the girl he fancies)

* Happens to Ranma and Akane in ''[[RanmaOneHalf Ranma ½]]'' from as early as the Ice Skating battle. In response to that storyline [[ItMakesSenseInContext (it makes sense when you see it, I promise)]] Ramna was dared by Akane to kiss her. As he worked up the raw nerve, he leaned in closer to her, and paused for just a brief moment, hesitating. [[spoiler:Then he noticed the other family members watching from a door, encouraging him to "Just kiss her!"]]
** A much more infuriating one comes from late in the manga. After the parents have told him that the only way to get Akane to give up the [[AppliedPhlebotinum Battle Dogi]] is to, basically, seduce her, Ranma pulls her into a closet for a "sincere" chat. He realizes very early on that, while she's being honest and affectionate, his intentions were not, which makes him feel like a miserable scumbag. Having realized this, he abandons the "plan" and then proceeds to talk to her with his true feelings, and the two of them embrace and come the closest ever to a real romantic kiss... [[spoiler:only to have the entire family barge in, and Soun reveals that Ranma's goal was to make her give up the Dogi. Understandably, Akane's anger exploded like never before or after in the manga.]]
**** This is a must [[UruseiYatsura for]] [[MaisonIkkoku virtually]] [[RanmaOneHalf all]] [[OnePoundGospel manga]] [[InuYasha written]] [[{{RIN-NE}} by]] RumikoTakahashi. Almost ''anything'' that makes the [[{{shipping}} shippers]] happy will be interrupted, by rule of thumb, subjecting the readers to a long, tortuous [[WillTheyOrWontThey will they or won't they]], laden with [[UnresolvedSexualTension UST]]. All progress made in the relationship is usually slow and gradual, but it's there, if you look hard enough.
* A favourite trope of {{CLAMP}}'s, it shows up particularly in ''CardCaptorSakura''. Every time Touya starts to tell Yukito about his other self (in their YaoiGuys pose), someone interrupts. Of course, the interruption is usually deliberate.
** For what [[BigBrotherComplex Touya]] is to [[MagicalGirl Sakura]], [[ChineseGirl Meilin]] is to [[TheLancer Syaoran]].

* ''InuYasha'''s Miroku and Sango have a mutual genius for this, no third party interference required. Miroku is the most frequent offender thanks to his habit of [[HandsomeLech copping a feel]] just when things are going well, but Sango has been guilty a few times as well. It happens so many times that at one point the series subverts it: finding Sango downcast after an encounter with her little brother, Miroku sits beside her to comfort her, and, atypically, remains perfectly chivalrous until Sango remarks that she would have expected him to try groping her by now. Miroku being [[ChivalrousPervert Miroku]], he promptly offers to make up for his omission if she wants him to. [[ArmorPiercingSlap Guess what.]]
** There's the other time that happens, of course, where ''she'' gropes ''him'' (expecting to find Shippo's tail, because of course Miroku would never have so much tact to properly comfort her).
*** There's one time in ''"Inuyasha: The Final Act"'' ''and'' the manga (I can't believe it's not butter... er, filler) when Inuyasha and Kagome are in her room talking about her staying in her time until Naraku is dead, then they come ''this close!''... and then here comes the rest of the family from their spontaneouos trip to the hot spring, with Sota coming in and completely spoiling it. Mabye it was because Kagome mentioned her family. That seems to happen a ''lot,'' you know, the ''speak of the devil'' thing. It's quite annoying, actually.

*** You can quite literally hear the mood bubble pop (no, really! they actually made it go *pop*!) and practically hear millions of [[PortmanteauCoupleName InuKag]] fans screaming at their TV (or computer, they had it out on Hulu subbed first) "Oh, ''COME ON!!!''"

* Might have been taken a bit too far in ''CodeGeass'''s second season, where the {{Tsundere}}s Lelouch and Kallen have yet to have ''a single conversation'' that did not go down this path (the Moment Killers have been becoming more and more ridiculous with every passing episode). Note: ''CodeGeass'' is not a romantic comedy and Kallen, while the most developed of the romantic prospects in season two, may not end up being the winner... if there ''is'' a winner ''at all''.
** To make it even more annoying, the first uninterrupted conversation they have during the whole season ends with [[spoiler:Kallen confessing to Lelouch and even kissing him, but since he's moments away from turning himself into the enemy of the entire world and doesn't want to drag her into it, he doesn't respond to any of it (says nothing at all, and doesn't even admit that he knows who she is), leaving Kallen with the impression that he feels nothing for her]], resulting in Kallen bidding him farewell and walking away, with him sadly whispering goodbye once she's out of earshot.
*** Ironically, in R2 episode 24, [[spoiler:Lelouch and C.C. have a very touching moment together, and it's interrupted by Kallen bursting through the wall to kill Lelouch.]] A few fans joked that this was revenge for [[spoiler:C.C. interrupting a near-AccidentalKiss between Lelouch and Kallen earlier in the series in a very "mother walking in on her son and his girlfriend making out" fashion.]]
* Almost everytime Saito and Louise come together in ''{{Zero no Tsukaima}}''
** It gets worse and worse. Especially once you consider that it keeps happening during the third season as well, despite the fact that [[spoiler:they got ''married'' at the end of season two]].
* Taniguchi [[SorryToInterrupt barging in]] on ''SuzumiyaHaruhi'', when Kyon and Yuki were, erm, ''close'' to each other could be counted as a MomentKiller. Of course, it's PlayedForLaughs.
** Haruhi disrupting Kyon and Mikuru ''twice'', too.
* Sousuke is ''finally'' about to [[CooldownHug embrace Kaname when she breaks down in tears]] at the end of ''[[FullMetalPanic Full Metal Panic: The Second Raid!]]'', but then an entire classful of girls enter the corridor and start shouting at him for upsetting Kaname again.
** Sousuke himself tends to do this to Kaname. Especially when she misconstrues his actions as being "bold" and "romantic," only for him to completely obliterate any such hope by doing something ridiculous.
** And then there's the awkward finale at the end of Season 1, which... didn't go too well for Gauron, to say the least. And just when the guy was working hard to get the mood right, too.

* {{Naruto}} and Sakura were having a moment and Sakura was about to feed Naruto ramen when Sai pops in as the Moment Killer -- and offers to feed Naruto himself, which Naruto was '''not''' pleased about.
** [[spoiler:Kakashi ends up being the one who feeds Naruto, which doesn't please ''anybody''.]]
* Somewhat subverted with [[FanPreferredCouple Soul and Maka]] from ''SoulEater'', when [[spoiler:Maka is standing beside Soul in the infirmary after the fight with Crona, in which he was seriously injured. Maka is tearing up and in the middle of some kind of heroic vow when '''Black☆Star''' [[FeedMe crashes into the room and starts yelling at the top of his voice as he practically strangles an unconcious Soul on the bed in an attempt to wake him up]].]] Most shippers felt that the Maka Chop that came after was well deserved.
** [[HoYay Speak for yourself.]]

* In the final episode of ''{{Tenchi in Tokyo}}'', just when Ryoko was about to kiss Tenchi, Washu pops out of the tree trunk where Tenchi and Ryoko are standing, to test her new and improved Dimensional Tunnel. She was then followed by Sasami, and then Ayeka, and finally Mihoshi and Kiyone.
** In episode 7 of ''[[{{ptitlevnmw5ofi}} Tenchi Muyo! Ryo-Ohki]]'', Washu [[NightNurse dresses up in a nurse outfit]] to perform her... [[IfYouKnowWhatIMean experiments on Tenchi]]. And then Mihoshi walks in the lab...
* This happens quite a few times to Dee and Ryo in ''{{FAKE}}''. Usually the moment killer comes in the form of Bikky and/or Carol barging into their room (Ryo even calls on them at least once to deliberately foil Dee's wiles), but there's also that time when Ryo fell asleep right after kissing Dee and that other time when Dee's phone rang just as things were getting hot and heavy between the two of them. No wonder it took them seven volumes (which is quite long indeed for a [[BoysLove BL]] manga) to officially get together.
* Good job, [[{{Bleach}} Nel]], you kind of ruined the quiet, subtle, heart filled moment between Ichigo and Orihime, which essentially counted as their true reunion. Not that you diving into Ichigo's, uh, [[IfYouKnowWhatIMean lower abdomen area]] wasn't cute in it's own way, it's just, you killed that sweet moment.
** Also, don't forget that bit in chapter 228 when Rukia and Orihime are veering dangerously close to a les yay moment (I mean, just look at the chapter break if you don't believe this troper! http://manga.bleachexile.com/bleach-chapter-228-page-3.html ), and Hiyori quite literally falls from the sky and drags Orihime off. Moment killer much?
* This trope is essentially the only reason it took [[PleaseTeacher Kei and Mizuho]] so long to, oddly, do anything at all...except hook up. Huh.
** His annoying and oft-tragic condition doesn't help matters much.

* How has no-one mentioned [[{{Anime.Ptitlei015gc004kw4}} Brock's Croagunk]] yet? The thing is a ''[[RunningGag walking cockblock]]''. Any time Brock gets excited around a woman, he leaps into action with a Poison Jab attack, right in Brock's ass. Brock will collapse and be dragged off. Before Croagunk, variations where Misty or Max would drag him off by the ear used to occur.
** Team Rocket also plays this sometimes, like during the most recent episode. As [[spoiler:Piplup and Pikachu are sobbing into Togekiss's chest because Ash, Brock, and Pikachu are going back to Kanto, Team Rocket comes in with another stupid capture attempt. This is then turned into a CrowningMomentOfAwesome as not only does Ash deliver a ShutUpHannibal moment via a Brave Bird, but Team Rocket gets freaking]] [[spoiler:[[CurbStompBattle CURB STOMPED]].]]

* In [[TeenTitans Titans]], Beast Boy and Raven go on a "NotADate" and have a sweet, tender moment... which is ruined when her brothers show up and beat the crap out of Beast Boy. I guess they don't approve.
* In the first issue of ''YoungAvengers: The Children's Crusade'', [[YaoiGuys Hulking and Wiccan]] [[http://30.media.tumblr.com/tumblr_l5kiqiTFlY1qcabtmo1_500.jpg are about to start making out in the Avenger's mansion]] when Speed shows up literally out of nowhere and asks what the hell they're doing. Cue the fans: "Dammit, Tommy!"

* In what was pretty much his role in all the ''StarWars'' movies, C-3PO exclaimed, "Captain Solo! Captain Solo! I've isolated the reverse power flux coupling!"
** [[SarcasmMode "Thank you.]] Thank you ''very much''." [[DoesNotUnderstandSarcasm "You're welcome, sir!"]]

* ''{{Back to the Future}}'': Marty and Jennifer are dreaming about things in the clock-tower square and are playfully flirting, coming close to a kiss. But it is interrupted by an activist asking for donations to save the clock tower, setting up the [=~Chekhov's Gun~=] about lightning hitting the tower later in the film.
** And at the end of the movie (or the beginning of Part 2), the return of the Delorean from Doc's trip to the future interrupts another kiss.
* Hilariously subverted in ''Film/{{Serenity}}'', where Simon and Kaylee finally resolve their [[UnresolvedSexualTension UST]] in the engine room, and the camera pans up to show River poking her head in as they start to do the horizontal mambo. In this case, though, the moment ''isn't'' killed; River just ''watches''. From the ceiling.
** [[MemeticMutation Ceiling River is watching you fornicate.]]
* In ''TheDarkKnight'', Rachel and Bruce are on the balcony outside the large fundraiser for Harvey Dent. Just as they look like they're going to reconcile romantically, Dent comes in abruptly. To make matters worse, [[spoiler:the Joker breaks in with his gang and promptly begins shooting up the place looking for Dent.]]
** Not to mention when Harvey was proposing to Rachel, Bruce appears out of nowhere to knock him him and drag him to a closet because [[spoiler: that's when the Joker appeared, looking specifically for him]].
* Another balcony scene: in ''Film/IronMan'', Tony and Pepper are talking outside one of Tony's annual parties. They almost kiss, and stop when both of them realize how awkward the situation is. Pepper asks for a drink and Tony goes downstairs.
** A related scene at the end of the movie, Tony and Pepper share a tender moment when he reminds her of "that night" on the balcony. [[spoiler:Pepper then reminds him that he forgot to bring the drink back upstairs and left her waiting.]]
* Another subversion (or aversion, depending on your point of view) of this trope pops up in the final scene of ''{{WALL-E}}'': [[spoiler:WALL-E and EVE finally hold hands, staring lovingly into each other's eyes while WALL-E's tape of ''HelloDolly!'' reaches the "It Only Takes a Moment" scene. Just then, the broken robots and M-O arrive to greet the two. Fortunately, M-O recognizes that [[LeaveTheTwoLovebirdsAlone WALL-E and EVE need to be left alone]], and he shoos the other 'bots away.]]
* In another MelBrooks film, ''RobinHood: Men in Tights'', after defeating the Sheriff of Rottingham and finding his key fits Mariam's Chastity Belt, Robin was about to unhook her when Mariam's nursemaid storms in, declaring: "Before you do it, you must go through it!... or else I blew it." Cue Robin snapping his fingers in frustration at being cock-blocked.
** Which reminds me of another moment killer of a much different kind, when Robin realized just how sturdy Marian's "everlast" chastity belt was. I think it was more literally painful.

** Also at the very end, when they try the key... and it doesn't work. "Call the locksmith!"

* The entire ''HarryPotter and the Half-Blood Prince'' film is just one cockblock after another for Harry. After Dumbledore ruins Harry's chance with a cute waitress, Hermione smacks Harry for even looking at Romilda Vane, and his date with Luna never gets past "just friends", Harry then has this happen TWICE with his true love Ginny. The first time, Ron sits down in the couch between them with an oversized plate of pies. And it just gets better when a bathrobe-clad Ginny is interrupted in kissing Harry when a gaggle of Deatheaters come right the frig out of nowhere and wreak havoc upon The Burrow. Later he finally gets one tiny kiss...and she's gone when he opens his eyes. Oh well, maybe next time. After Voldemort's defeated, or something....
** Technically he never intended to go past "just friends" with Luna.

* ''The {{X-Files}}: Fight the Future'': When Mulder and Scully are about to kiss, Scully is [[spoiler:stung by a bee.]]
** Unless, of course, you watch the blooper (in which Gillian throws David against the wall, kissing him) or a real deal deleted scene, in which the two actually do kiss, prompting Mulder to pick Scully up and go...offscreen.

** The best part is, he accidentally ruined the moment by coming in and asking if they could help him build a ''pillow fort''.

* "[[{{Superbad}} You just cockblocked McLovin, man!]] He's our friend, we should be ''guiding'' his cock."

* Oh so many times in The DarkestPowers Trilogy. Especially with Chloe and Derek. Simon is a master cockblocker.

* [[TropeNamer Named]] from a running gag in an episode of ''{{Scrubs}}''. Whenever J.D. worked up the nerve to ask Kim out on a date, Elliot would step in and chat with her girl-pal. Cue title-card: ''[[http://www.youtube.com/watch?v=Uc_hDy8xk0Y ELLIOT REID: MOMENT KILLER]]''.
** Elliot/J.D. had this happen to them in one of the first (pilot?) episodes, when J.D. remarks about the timelimit before you enter "the friend zone" after a near-kiss, just as he is about to get in before the time limit, Dr Cox jumps into the room and kills the moment.
* ''{{iCarly}}'': Spencer does this to all 3 of them: he cockblocks Carly hard in her attempt to kiss Shane in ''iSaw Him First''; when Freddie hits on Carly in ''iDon't Wanna Fight'', a flush is heard from Spencer's toilet; and as for Seddie fans, Spencer breaking in to find his banjo before they even answer Carly's question if Sam and Freddie liked their kiss.

* ''{{Friends}}'' did this between Ross and Rachel. In "The One with the Blackout", Ross is about to declare his feelings to Rachel on the balcony, then gets attacked by a psycho cat who belongs, of course, to [[ThePaolo Paolo]].

* In the ''{{Firefly}}'' episode "Objects in Space", Simon and Kaylee are talking, one thing leads to another, they both lean in, about to kiss for the first time, and then Book interrupts by accident.
** Simon also has the dubious distinction of having killed at least one moment on his own, though. When alone with Kaylee, in a freak show of sorts, he gives as reason that he is attracted to her, that she is the only woman in his life who is neither married, a "professional," or a close blood relative. Quoth Wash, "Oh my God! It's grotesque! Oh, and there's something in a jar."

* In ''TheOffice'' fourth season finale, Jim is about to [[spoiler:propose to Pam]], which the show had been hinting at in recent episodes, when [[spoiler:Andy]] asks [[spoiler:Angela]] to marry him.
** Earlier seasons often featured Jim and Pam having a moment, only for it to be interrupted by the people they were actually ''with'' at the time...

* This happens quite literally in ''LifeOnMars''. Sam Tyler is leaning over the table to kiss WPC Cartwright... when his future self has an induced heart attack.
** Count how many times Gene Hunt interrupts a heart-to-heart talk between Sam and Annie throughout both seasons.
*** He's paid back in ''{{Ashes to Ashes}}'', though. Every time Gene and Alex get near each other, Shaz pops in with some vital bit of info or other.
*** In the most recent episode of ''{{Ashes to Ashes}}'', [[spoiler:Jim Keats]] manages to pull off one hell of an epic cock block. Mind you, that was accomplished with [[spoiler:pictures of Sam Tyler]] so maybe he deserves the credit after all...
* Speaking of John Simm, how has the recent heart-to-heart between the Doctor and the Master in ''DoctorWho'' not been mentioned yet? The Doctor is persuading the Master to come and travel with him through the universe, the Master is going all teary-eyed and mellow, there's a declaration of affection on the Doctor's part... and then Wilfred shouts his way into the conversation. [[MomentKiller Arg]].
** Turnabout is fairplay, though, since the Doctor himself is often guilty of this; most recently in "The Lodger", when Craig, his landlord and Hapless NiceGuy, has invited his best friend Sophie around to finally admit to her that he's in love with her. He's just about to blurt it out when cue the Doctor, having decided to rewire the house's electricity.

* Happens to [[BuffyTheVampireSlayer Buffy]] and Angel when they first kiss -- Angel vamps out unexpectedly. This is how Buffy finds out about Angel's true nature.

** [=BtVS=] was rife with Moment Killers. Another one that springs immediately to mind comes from the beginning of Season Two. Willow and Xander are out for a nighttime stroll, and Xander playfully dabs Willow's nose with ice cream. He's just about to kiss it off when they are interrupted by a vampire, which Buffy promptly arrives back in town to kill. Willow later attempts to recreate the moment, but by that point, Xander is back to being all hung up over Buffy.

* Dan for Blair and Chuck on ''GossipGirl'' in the season two episode where she has decided to take the chance and tell Chuck that she loves him. Ironic since she originally turned to Dan for help on how to get Chuck into bed ''without'' telling him she loved him (he refused to put out unless she confessed love and she didn't want to let him win) and Dan gave her a little speech that convinced her that it was better to take the chance and risk her pride for a shot at happiness. Dan then does a 180 and realizes he hates Blair so he intercepts her on her way to see Chuck and basically tells her she's doomed if she confesses love to Chuck Bass. She tells him he's wrong, but when she's face to face with Chuck she loses nerve and they end up arguing instead.
** Also Vanessa in season one, when Dan and Serena try to have sex for the first time.
** Dan does it to Chuck and Blair again in the season three finale. Chuck's on one knee, box in hand, says "Blair, will you-" and then Dan punches Chuck [[spoiler: for sleeping with his sister hours before.]]

* According to RemingtonSteele the ''entire universe'' was involved in a vast conspiracy to prevent him from getting chummy with Laura Holt.

* [[{{Bones}} That goddamn]] ''[[{{Bones}} clown.]]''

* An (arguably) non-romantic version in ''ThePacific'': Sledge and Snafu have just shared a sweet moment in which Snafu wordlessly comforts his friend over the death of his dog by leaning against his shoulder...and then Hamm barges in to announce that his brother was on a ship that was attacked by kamikazes. (Snafu: ''"Wow."'')
* Several moments between Sydney and Vaughn were killed on ''{{Alias}}'': at the end of The Counteragent, Asst. Director Kendall interrupts a particularly tender moment between the two; at the beginning of Phase One, Weiss bursts into the "flirting corner" with exceptionally awful timing, [[spoiler: though they later [[CrowningMomentofAwesome fix]] [[TheyDo that]]]].

* In a cut scene in ''MaxPayne 2'', Max and Mona are in an alley heavily making out to the point where Mona is leaning against a wall with her legs wrapped around Max and her shirt pulled up to her neck and Max *ahem*below that, when they hear Mooks yelling and running towards them. They then have to end their previous activities.
* In ''[[MetalGearSolid MGS3: Snake Eater]]'', Naked Snake managed to cock-block ''himself''. EVA moved in to kiss him and was suggesting a little more when he out of the blue decided to offer her a roasted snake, while moving his head away from her.

* Shepard and your chosen LoveInterest in ''MassEffect'' are getting quite close (should you pursue the romantic subplot between them) when Joker interrupts. Shepard can accuse him of doing it intentionally.

* [[JakAndDaxter Daxter. Daxter Daxter Daxter Daxter Daxter]]. Turning a kiss into an AlmostKiss once would be forgivable, but doing it twice? [[spoiler:Thankfully, not only does Jak get his revenge in ''Jak III'', but at the end of ''Jak X'' Daxter {{Lampshade|Hanging}}s this with "Would you just kiss her already? Sheesh!"]]
* Not sure if this counts 100%, but in ''{{The Legend of Zelda}} PhantomHourglass'', Tetra finally [[IGotBetter gets better]] from being TakenForGranite, and Link and Tetra look one another in the eyes. Smiling, they reach their hands out to one another in slow-motion, and just as they're about to touch, [[spoiler:[[BigBad Bellum]] bursts through the ceiling and steals Tetra away]].
* Becomes a running gag in ''AceAttorney'', when Detective Gumshoe walks in, accompanied by a loud "THUMP" and exclaims "Hope I'm not interrupting anything!" Cue the icy stares and Gumshoe sulking off.
** After which Phoenix will promptly call him over, it was a running gag in the bonus fifth case where Gumshoe would then retort "You're doing this on purpose aren't you? Making a gumshoe run around while on duty! And on top of that you drag me here! I've seen happier people at funerals!"

* [[MonkeyIsland Guybrush]] has just proposed to Elaine, and put the engagement ring on her finger, when Wally appears and innocently informs them that the ring has a HUGE VOODOO CURSE on it. Elaine is '''not''' happy.

* ''{{Casey and Andy}}'', [[http://www.galactanet.com/comic/view.php?strip=627 Strip 627]]: Andy pops in to inform Casey of the arrival of Jenn's time-traveling daughter, and the necessity to embark on further temporal misadventures to save the timeline... while he's in the middle of proposing to his girlfriend. Of course, Mary is very understanding, and even lets Casey go off with Andy to save the timeline.
** [[http://galactanet.com/comic/view.php?strip=483 "Cockblocked by God. That's gotta suck"]]
* Chapter 18 of ''GunnerkriggCourt'' begins with Kat walking in on her parents as they're getting intimate.
** Much cheer was had when they carried on after she had left the room.

* Rumisiel plays the MomentKiller on Ash and Em in an early ''{{Misfile}}'' strip, sending their relationship straight down BelligerentSexualTension alley.
** And [[http://www.misfile.com/?page=1113 here]] we have Ash and Em having a significant moment, with Em just on the verge of saying that... DAMMIT, MISSI!
* Happened in ''{{The Order of the Stick}}'' [[http://www.giantitp.com/comics/oots0316.html # 316]]: Haley attempts to kiss Elan during New Year's Eve, but can't bring herself to do it. When she finally gets the courage, another girl jumps in and kisses Elan instead.
** [[http://www.giantitp.com/comics/oots0292.html "Just curious, do you get XP for killing this dramatic moment?"]]

* ''ElGoonishShive'' had this often, usually with Sarah doing the moment-killing -- and occasionally realizing that she'd just killed a moment. Also {{lampshaded}} in the process of {{aversion}} when Tedd asks Grace why she's leading him away from [[SchoolgirlLesbians Ellen and Nanase]] as if they need privacy for some reason.
** The Demonic Duck [[spoiler:deliberately interrupts Justin and Susan during the party using his illusion powers. Afterward, they're both grateful the "light bulb burned out".]]

* Agatha and Gil's AlmostKiss in ''GirlGenius'' is [[ChandlersLaw interrupted]] by [[http://www.girlgeniusonline.com/comic.php?date=20090511 an angry professor on a mechanized Gatling gun carrier.]] This fact, all by itself, tells you everything you need to know about the comic.
** Gil's reaction to being shot at is an indignant 'hey!' that is clearly a reaction to the moment being killed rather than him almost being killed.

* In [[TheSpoonyExperiment Spoony's]] Vlog/Review of the New Moon movie, he comments on how Bella and Jacob are about to kiss several times before something stupid happens, such as, as he put it, a guy runs in yelling "HEY YOU GUYS I MADE MUFFINS!!".

* My gods, the amount of this with the ''TeenTitans'' movie ''Trouble in Tokyo'' drove this rabid Robin/Starfire shipper ''nuts''. "No! Why did you walk in now? They were about to, and Robin's wearing those! Arghhh!"
** Then you must have been relieved when they finally got to that part at the end of the movie.
** And there were plenty of these in the series itself.
** Which is pretty freaking funny because anyone that knows the slightest thing about the comic series knows they did a ton more than kiss. I believe the term is "shared quarters" in Titans' Tower.
** Beast Boy and Raven had, not one but ''two'' of these. The first one was after a tender hug, Cyborg promptly threw a ball of dirty laundry at Beast Boy's head. ItMakesSenseInContext. The second was killed by Beast Boy himself, much to Raven's annoyance.

* In ''JusticeLeagueUnlimited'', Flash managed a ''dramatic'' moment killer: the league makes a perfect, epic entrance and the awe of the moment gets {{Narm}}ed by Flash shouting "Ta da!" More traditional examples happen to moments between Green Lantern and Hawkgirl.
** A few of these happened to Batman and Wonder Woman. One time, they were discussing about their potential relationship when an alarm sounded off.

* In the ''{{Futurama}}'' episode "A Flight to Remember", where the characters travel on a cruise spaceship:

** In the episode "Parasites Lost", Fry himself kills the moment. First, he runs away to get rid of the parasites, hoping to prove that Leela loves him and not just what the parasites did for him. When he came back, and Leela was rather miraculously still in the mood, he managed to tick her off by bringing an old girlfriend into the conversation.
*** Doubles as a CrowningMomentofAwesome in this troper's opinion, that Fry would rather win her over while remaining who he is instead of letting the miracle worms keep turning him into Batman.

* In ''{{Superman}}: Brainiac Attacks'', the titluar villain is the moment killer for Clark and Lois. Let's face it, all supervillains seem to have perfect timing for moment killing...

* The Super Robot does this to Sprx and Nova in ''SuperRobotMonkeyTeamHyperforceGo'', [[DyingDeclarationOfLove ironically enough by saving their lives.]]

<<|ComedyTropes|>>
<<|LoveTropes|>>

** And [[http://www.misfile.com/?page=1113 here]] we have Ash and Em having a significant moment, with Em just on the verge of saying that... Y HELO THAR, MISSI!

Then her brother walks into the room, asking if she wants pepperoni or ham on her pizza. "Ugh!!!" is their reply, echoed by all of the fans. Whatever was there has been shot down dead. They lost the spirit of the moment and it will be a long time before they can get it back. After witnessing their frustrated anger, the brother then asks, "Is this a bad time?"

->"Uh, Blunk hate to spoil moment, but... CUTE COUPLE STILL IN TROUBLE!!!"\\
-- '''Blunk''' (reminding a making-out Caleb and Cornelia that a runaway ATV is about to run them down), ''{{WITCH}}'', "I is for Illusion"

* Somewhat subverted with [[FanPreferredCouple Soul and Maka]] from ''SoulEater'', when [[spoiler:Maka is standing beside Soul in the infirmary after the fight with Crona, in which he was seriously injured. Maka is tearing up and in the middle of some kind of heroic vow when '''Black?Star''' [[FeedMe crashes into the room and starts yelling at the top of his voice as he practically strangles an unconcious Soul on the bed in an attempt to wake him up]].]] Most shippers felt that the Maka Chop that came after was well deserved.

* Ageha and Tsumomu of ''Toshiue no Hito'' are university students living together after a rather fraught courtship. It could be the temporary flatmate or [[PrettyFreeloaders one or all of the members of his literature club]] or even his parents come to see why he's living with an [[ChristmasCake older woman]], but it seems that no matter what, ''someone'' will interrupt their chance of being intimate, often as they're in the middle of taking their clothes off. [[PlotWithPorn It's that kind of series]].

* More than one beer commercial has used the idea of a Moment Killer, usually demonstrating how the advertised beer will aid in thwarting him.

* ''{{Planetes}}'': Tanabe and Sempai are back on earth, visiting his parents, they end up on the beach at sunset when Tanabe stumbles and create by accident the favorable position for a kiss... a frigging rocket launched by Hachimaki's brother literally sinks the moment.
* Happens to Ranma and Akane in ''[[RanmaOneHalf Ranma ½]]'' from as early as the Ice Skating battle. In response to that storyline [[ItMakesSenseInContext (it makes sense when you see it, I promise)]] Ramna was dared by Akane to kiss her. As he worked up the raw nerve, he leaned in closer to her, and paused for just a brief moment, hesitating. [[spoiler:Then he noticed the other family members watching from a door, encouraging him to "Just kiss her!"]]
** A much more infuriating one comes from late in the manga. After the parents have told him that the only way to get Akane to give up the [[AppliedPhlebotinum Battle Dogi]] is to, basically, seduce her, Ranma pulls her into a closet for a "sincere" chat. He realizes very early on that, while she's being honest and affectionate, his intentions were not, which makes him feel like a miserable scumbag. Having realized this, he abandons the "plan" and then proceeds to talk to her with his true feelings, and the two of them embrace and come the closest ever to a real romantic kiss... [[spoiler:only to have the entire family barge in, and Soun reveals that Ranma's goal was to make her give up the Dogi. Understandably, Akane's anger exploded like never before or after in the manga.]]
**** This is a must [[UruseiYatsura for]] [[MaisonIkkoku virtually]] [[RanmaOneHalf all]] [[OnePoundGospel manga]] [[InuYasha written]] [[{{RIN-NE}} by]] RumikoTakahashi. Almost ''anything'' that makes the [[{{shipping}} shippers]] happy will be interrupted, by rule of thumb, subjecting the readers to a long, tortuous [[WillTheyOrWontThey will they or won't they]], laden with [[UnresolvedSexualTension UST]]. All progress made in the relationship is usually slow and gradual, but it's there, if you look hard enough.
* A favourite trope of {{CLAMP}}'s, it shows up particularly in ''CardCaptorSakura''. Every time Touya starts to tell Yukito about his other self (in their YaoiGuys pose), someone interrupts. Of course, the interruption is usually deliberate.
** For what [[BigBrotherComplex Touya]] is to [[MagicalGirl Sakura]], [[ChineseGirl Meilin]] is to [[TheLancer Syaoran]].
* Every time Keiichi is about to get his nerve up with Belldandy in ''AhMyGoddess!'', something happens. It often involves explosions or magic [=SNAFUs=].
* ''InuYasha'''s Miroku and Sango have a mutual genius for this, no third party interference required. Miroku is the most frequent offender thanks to his habit of [[HandsomeLech copping a feel]] just when things are going well, but Sango has been guilty a few times as well. It happens so many times that at one point the series subverts it: finding Sango downcast after an encounter with her little brother, Miroku sits beside her to comfort her, and, atypically, remains perfectly chivalrous until Sango remarks that she would have expected him to try groping her by now. Miroku being [[ChivalrousPervert Miroku]], he promptly offers to make up for his omission if she wants him to. [[ArmorPiercingSlap Guess what.]]
** There's the other time that happens, of course, where ''she'' gropes ''him'' (expecting to find Shippo's tail, because of course Miroku would never have so much tact to properly comfort her).
*** There's one time in ''"Inuyasha: The Final Act"'' ''and'' the manga (I can't believe it's not butter... er, filler) when Inuyasha and Kagome are in her room talking about her staying in her time until Naraku is dead, then they come ''this close!''... and then here comes the rest of the family from their spontaneouos trip to the hot spring, with Sota coming in and completely spoiling it. Mabye it was because Kagome mentioned her family. That seems to happen a ''lot,'' you know, the ''speak of the devil'' thing. It's quite annoying, actually.

*** You can quite literally hear the mood bubble pop (no, really! they actually made it go *pop*!) and practically hear millions of [[PortmanteauCoupleName InuKag]] fans screaming at their TV (or computer, they had it out on Hulu subbed first) "Oh, ''COME ON!!!''"
* Every time Keitaro and Naru in ''LoveHina'' come close to kissing or admitting their feelings for one another, someone will inevitably barge in on them or Keitaro will suffer an AccidentalPervert moment and provoke Naru into {{Megaton Punch}}ing him. Even after they finally kiss and become an ''official'' OfficialCouple in the manga, {{Moment Killer}}s still abound whenever they try to consummate their relationship.
* This occurs in a romantic moment in ''ElfenLied'' between Kouta and Yuka, in which Nyu promptly jumps out, startling them both and ruining said moment. Luckily though, [[FanService she's completely naked]].
* Kaoru and Aoi get this ''a lot'' in ''AiYoriAoshi''. Most of the cast {{Moment Kill|er}}s by accident, but Miyabi, being the MamaBear she is, does it on purpose. She mellows eventually.
* Might have been taken a bit too far in ''CodeGeass'''s second season, where the {{Tsundere}}s Lelouch and Kallen have yet to have ''a single conversation'' that did not go down this path (the Moment Killers have been becoming more and more ridiculous with every passing episode). Note: ''CodeGeass'' is not a romantic comedy and Kallen, while the most developed of the romantic prospects in season two, may not end up being the winner... if there ''is'' a winner ''at all''.
** To make it even more annoying, the first uninterrupted conversation they have during the whole season ends with [[spoiler:Kallen confessing to Lelouch and even kissing him, but since he's moments away from turning himself into the enemy of the entire world and doesn't want to drag her into it, he doesn't respond to any of it (says nothing at all, and doesn't even admit that he knows who she is), leaving Kallen with the impression that he feels nothing for her]], resulting in Kallen bidding him farewell and walking away, with him sadly whispering goodbye once she's out of earshot.
*** Ironically, in R2 episode 24, [[spoiler:Lelouch and C.C. have a very touching moment together, and it's interrupted by Kallen bursting through the wall to kill Lelouch.]] A few fans joked that this was revenge for [[spoiler:C.C. interrupting a near-AccidentalKiss between Lelouch and Kallen earlier in the series in a very "mother walking in on her son and his girlfriend making out" fashion.]]
* Almost everytime Saito and Louise come together in ''{{Zero no Tsukaima}}''
** It gets worse and worse. Especially once you consider that it keeps happening during the third season as well, despite the fact that [[spoiler:they got ''married'' at the end of season two]].
* Taniguchi [[SorryToInterrupt barging in]] on ''SuzumiyaHaruhi'', when Kyon and Yuki were, erm, ''close'' to each other could be counted as a MomentKiller. Of course, it's PlayedForLaughs.
** Haruhi disrupting Kyon and Mikuru ''twice'', too.
* Sousuke is ''finally'' about to [[CooldownHug embrace Kaname when she breaks down in tears]] at the end of ''[[FullMetalPanic Full Metal Panic: The Second Raid!]]'', but then an entire classful of girls enter the corridor and start shouting at him for upsetting Kaname again.
** Sousuke himself tends to do this to Kaname. Especially when she misconstrues his actions as being "bold" and "romantic," only for him to completely obliterate any such hope by doing something ridiculous.
** And then there's the awkward finale at the end of Season 1, which... didn't go too well for Gauron, to say the least. And just when the guy was working hard to get the mood right, too.

---> '''Sousuke:''' *[[spoiler:Tosses Gauron's mecha overboard]]*

* InvertedTrope in ''DigimonFrontier''. In episode 46, Takuya and Zoe are talking in the library when Takuya blurts out, "I really like you." Cue LuminescentBlush by Zoe and then by Takuya when he realizes what he just said. By the time Izumi tries to respond, Takuya is sleeping. In this case, the MomentKiller was one of the people that would benefit from the completion of the moment. ...The shippers were not amused.
* America and England of ''AxisPowersHetalia'' have a moment killed in a strip [[ExactlyWhatItSaysOnTheTin titled this]]. Also happens between Germany and Italy. In both cases, they don't even need third parties due to {{tsundere}}-ish traits or outright {{Oblivious|ToLove}}ness.

* Anytime Nike and Kukuri have a tender moment in ''MahoujinGuruGuru'', Gipple will inevitably pop up screaming for a barf bag.
* {{Naruto}} and Sakura were having a moment and Sakura was about to feed Naruto ramen when Sai pops in as the Moment Killer -- and offers to feed Naruto himself, which Naruto was '''not''' pleased about.
** [[spoiler:Kakashi ends up being the one who feeds Naruto, which doesn't please ''anybody''.]]
* Somewhat subverted with [[FanPreferredCouple Soul and Maka]] from ''SoulEater'', when [[spoiler:Maka is standing beside Soul in the infirmary after the fight with Crona, in which he was seriously injured. Maka is tearing up and in the middle of some kind of heroic vow when '''Black?Star''' [[FeedMe crashes into the room and starts yelling at the top of his voice as he practically strangles an unconcious Soul on the bed in an attempt to wake him up]].]] Most shippers felt that the Maka Chop that came after was well deserved.
** [[HoYay Speak for yourself.]]
* ''{{Eiken}}'''s Densuke and Chiharu, usually caused by Kirika, the other members of the club, and anyone else, in order of likeliness.
* In the final episode of ''{{Tenchi in Tokyo}}'', just when Ryoko was about to kiss Tenchi, Washu pops out of the tree trunk where Tenchi and Ryoko are standing, to test her new and improved Dimensional Tunnel. She was then followed by Sasami, and then Ayeka, and finally Mihoshi and Kiyone.
** In episode 7 of ''[[{{ptitlevnmw5ofi}} Tenchi Muyo! Ryo-Ohki]]'', Washu [[NightNurse dresses up in a nurse outfit]] to perform her... [[IfYouKnowWhatIMean experiments on Tenchi]]. And then Mihoshi walks in the lab...
* This happens quite a few times to Dee and Ryo in ''{{FAKE}}''. Usually the moment killer comes in the form of Bikky and/or Carol barging into their room (Ryo even calls on them at least once to deliberately foil Dee's wiles), but there's also that time when Ryo fell asleep right after kissing Dee and that other time when Dee's phone rang just as things were getting hot and heavy between the two of them. No wonder it took them seven volumes (which is quite long indeed for a [[BoysLove BL]] manga) to officially get together.
* Good job, [[{{Bleach}} Nel]], you kind of ruined the quiet, subtle, heart filled moment between Ichigo and Orihime, which essentially counted as their true reunion. Not that you diving into Ichigo's, uh, [[IfYouKnowWhatIMean lower abdomen area]] wasn't cute in it's own way, it's just, you killed that sweet moment.
** Also, don't forget that bit in chapter 228 when Rukia and Orihime are veering dangerously close to a les yay moment (I mean, just look at the chapter break if you don't believe this troper! http://manga.bleachexile.com/bleach-chapter-228-page-3.html ), and Hiyori quite literally falls from the sky and drags Orihime off. Moment killer much?
* This trope is essentially the only reason it took [[PleaseTeacher Kei and Mizuho]] so long to, oddly, do anything at all...except hook up. Huh.
** His annoying and oft-tragic condition doesn't help matters much.
* [[MahouSenseiNegima Kotarou]] [[http://www.mangafox.com/manga/mahou_sensei_negima/v25/c228/17.html manages to kill]] what even the [[FourthWallBreaking translator called]] a [[PortmanteauCoupleName [=NegiNodo=]]] moment, with some ill-timed comradery. [[TheMedic Konoka]], you could've left him partly TakenForGranite a ''little'' longer.
** Konoka has her own share of [[http://www.mangafox.com/manga/mahou_sensei_negima/v28/c250/4.html moment killing]]. On the same pair nonetheless. One [[YourMileageMayVary may suspect]] [[AlternateCharacterInterpretation that what Konoka]] does is actually sabotage to support [[ShipperOnDeck her own preferred couple]] [[spoiler:[[IncestIsRelative (Negi/Asuna)]]]].
* ''NogizakaHarukaNoHimitsu'' uses this trope extensively, with the primary offenders usually being the sister and maids who are supposedly rooting for them to get together.
* Wataru of ''{{Hayate the Combat Butler}}'' blocked himself. Nagi'd stuffed Isumi in a coffin so she could listen in while Nagi talked to Wataru about the problem of the week. She manages to get him to confess to liking Isumi, then turns to Isumi and asks if she needs anything more. Wataru fiercely backpedals and claims it was a joke. The audience weeps for his crush.
* In ''{{Little House with an Orange Roof}}'', Natsumi and Shou are interrupted by Natsumi's sister. Unusually, the killer immediately realizes what she was interrupting and attempts to remove herself from sight.
* In BakaToTestToShoukanjuu, when the whole building was falling down and everyone forgot that there was an ESB going on, Akihisa and Yuuji were saving their respective partners. Everyone was going awww [[spoiler: and suddenly, Yuuko Kinoshita just HAD to defeat Yuuji's summon. Class A won because of it.]]
* In KannazukiNoMiko, Himeko and Souma have their first kiss, when Himeko starts ''crying''.
* In ''{{Gankutsuou}}'' Albert and Eugenie are about to kiss in one scene but are interrupted by Andrea.
* In ''OmamoriHimari'', its practically a RunningGag for one of the girls starting to get intimate with Yuuko...only to be violently (and, oftentimes, [[CrowningMomentOfFunny hilariously]]) interrupted by one or more of the other girls.
* In ''{{Special A}}'' Yahiro and Megumi are about to kiss when Tadashi rushes by on a motorcycle, yelling "Hey, Yahiro! I'm borrowing your bike for a moment!" Yahiro responds "Can't you read the atmosphere here?"
* How has no-one mentioned [[{{Anime.Ptitlei015gc004kw4}} Brock's Croagunk]] yet? The thing is a ''[[RunningGag walking cockblock]]''. Any time Brock gets excited around a woman, he leaps into action with a Poison Jab attack, right in Brock's ass. Brock will collapse and be dragged off. Before Croagunk, variations where Misty or Max would drag him off by the ear used to occur.
** Team Rocket also plays this sometimes, like during the most recent episode. As [[spoiler:Piplup and Pikachu are sobbing into Togekiss's chest because Ash, Brock, and Pikachu are going back to Kanto, Team Rocket comes in with another stupid capture attempt. This is then turned into a CrowningMomentOfAwesome as not only does Ash deliver a ShutUpHannibal moment via a Brave Bird, but Team Rocket gets freaking]] [[spoiler:[[CurbStompBattle CURB STOMPED]].]]

* The ''StrontiumDog'' arc "Bitch" sets up what appears to be the end to all the UnresolvedSexualTension between Johnny Alpha and Durham Red when Johnny joins his female colleague in the shower ... until a naked Ronald Reagan (ItMakesSenseInContext) decides to enter the fray and immediately drop the soap.
* In [[TeenTitans Titans]], Beast Boy and Raven go on a "NotADate" and have a sweet, tender moment... which is ruined when her brothers show up and beat the crap out of Beast Boy. I guess they don't approve.
* In the first issue of ''YoungAvengers: The Children's Crusade'', [[YaoiGuys Hulking and Wiccan]] [[http://30.media.tumblr.com/tumblr_l5kiqiTFlY1qcabtmo1_500.jpg are about to start making out in the Avenger's mansion]] when Speed shows up literally out of nowhere and asks what the hell they're doing. Cue the fans: "Dammit, Tommy!"
* When {{Superboy}} and Wondergirl had their first kiss, WonderWoman out of nowhere grabs him by the collar and chucks him to the horizon.
* When Wondergirl (again) and {{Supergirl}} reunited in ''ComicBook/TeenTitans'' there was the extremely close hug, actual "I love yous", leaning in... and being shot with a rocket launcher by Ravager, who apparently enjoys having invulnerable teammates.

* Just when Kanae was going to kiss her Sempai in the HaruhiSuzumiya fanfic ''[[{{Fanfic/Ptitle0028gzjm}} Kyon: Big Damn Hero]]'' the unnamed enemy slider appeared himself to get her. It doesn't help that the enemy slider dislikes both of them and he has been searching for Kanae for a long time (the last time he lost Kanae one month ago).

* As for [[DisneyAnimatedCanon Disney Films]]:
** In ''Disney/TheLittleMermaid''; Ursula does this intentionally to prevent a kiss between Eric and Ariel. It has a bit more behind it, though -- she's not specifically trying to keep them apart, but instead trying to keep Ariel from fulfilling the terms of her DealWithTheDevil.
** Happens several times between Bernard and Bianca (involving a marriage proposal rather than a kiss) in ''TheRescuers Down Under''.
** In ''Disney/{{Aladdin}}''; Jasmine and Aladdin were having a moment at his sleeping spot and talking about how they [[NotSoDifferent both feel trapped]] by their circumstances. About to kiss, they are interrupted by the palace guards arriving to rescue Jasmine and arrest Aladdin.
** In ''Disney/{{Hercules}}''; Megara and Hercules were having a post-date conversation and falling in love when Phil arrives with Pegasus to interrupt and chastise Hercules for sneaking out on him. Making the best of the situation, he gives her a flower and a kiss on the cheek before he leaves and that leads to Megara's "falling in love" song.
** [[ToyStory "Bo Peep! Your sheep"']]
* In what was pretty much his role in all the ''StarWars'' movies, C-3PO exclaimed, "Captain Solo! Captain Solo! I've isolated the reverse power flux coupling!"
** [[SarcasmMode "Thank you.]] Thank you ''very much''." [[DoesNotUnderstandSarcasm "You're welcome, sir!"]]
* Dot Matrix, the parody version of C-3PO in ''{{Spaceballs}}'', has a Virgin Alarm that lets out a loud klaxon when Lone Star and Princess Vespa are about to kiss. "[[MySensorsIndicateYouWantToTapThat It's set to go off before you do!]]"
* ''JudgeDredd''. The title character and Judge Hershey are having an intimate talk in Hershey's trashed apartment. Herman Ferguson, the comedy relief sidekick who's been tagging along with Dredd, walks in and interrupts them, then says "Is this a bad time?"
* Donkey does this constantly in the ''{{Shrek}}'' films. Often to say stuff like "Isn't this romantic?"
* ''{{Back to the Future}}'': Marty and Jennifer are dreaming about things in the clock-tower square and are playfully flirting, coming close to a kiss. But it is interrupted by an activist asking for donations to save the clock tower, setting up the [=~Chekhov's Gun~=] about lightning hitting the tower later in the film.
** And at the end of the movie (or the beginning of Part 2), the return of the Delorean from Doc's trip to the future interrupts another kiss.
* Hilariously subverted in ''Film/{{Serenity}}'', where Simon and Kaylee finally resolve their [[UnresolvedSexualTension UST]] in the engine room, and the camera pans up to show River poking her head in as they start to do the horizontal mambo. In this case, though, the moment ''isn't'' killed; River just ''watches''. From the ceiling.
** [[MemeticMutation Ceiling River is watching you fornicate.]]
* In ''TheDarkKnight'', Rachel and Bruce are on the balcony outside the large fundraiser for Harvey Dent. Just as they look like they're going to reconcile romantically, Dent comes in abruptly. To make matters worse, [[spoiler:the Joker breaks in with his gang and promptly begins shooting up the place looking for Dent.]]
** Not to mention when Harvey was proposing to Rachel, Bruce appears out of nowhere to knock him him and drag him to a closet because [[spoiler: that's when the Joker appeared, looking specifically for him]].
* Another balcony scene: in ''Film/IronMan'', Tony and Pepper are talking outside one of Tony's annual parties. They almost kiss, and stop when both of them realize how awkward the situation is. Pepper asks for a drink and Tony goes downstairs.
** A related scene at the end of the movie, Tony and Pepper share a tender moment when he reminds her of "that night" on the balcony. [[spoiler:Pepper then reminds him that he forgot to bring the drink back upstairs and left her waiting.]]
* Another subversion (or aversion, depending on your point of view) of this trope pops up in the final scene of ''{{WALL-E}}'': [[spoiler:WALL-E and EVE finally hold hands, staring lovingly into each other's eyes while WALL-E's tape of ''HelloDolly!'' reaches the "It Only Takes a Moment" scene. Just then, the broken robots and M-O arrive to greet the two. Fortunately, M-O recognizes that [[LeaveTheTwoLovebirdsAlone WALL-E and EVE need to be left alone]], and he shoos the other 'bots away.]]
* In another MelBrooks film, ''RobinHood: Men in Tights'', after defeating the Sheriff of Rottingham and finding his key fits Mariam's Chastity Belt, Robin was about to unhook her when Mariam's nursemaid storms in, declaring: "Before you do it, you must go through it!... or else I blew it." Cue Robin snapping his fingers in frustration at being cock-blocked.
** Which reminds me of another moment killer of a much different kind, when Robin realized just how sturdy Marian's "everlast" chastity belt was. I think it was more literally painful.

'''Robin:''' Oh, Marian. * clank* ... Unnnngh.\\

** Also at the very end, when they try the key... and it doesn't work. "Call the locksmith!"
* Used as a RunningGag in ''ChickenRun''. Every time Ginger and Rocky try to kiss, something interrupts them. (Mostly done because the animators had no clue how to make two chickens kiss...)
* ''WhoFramedRogerRabbit'': Eddie and Delores are about to kiss when they hear Roger sighing. "P-p-p-please, don't mind me."
* ''{{Cars}}'': [=McQueen=] and Sally are interrupted by Mater on the Dinoco helicopter.
* Mikaela in the ''[[TransformersFilmSeries Transformers]]'' film improvised and used this as an excuse why Sam was acting nervous and jittery when his parents came into his room: "He was hiding a girl." And his parents fell for it enthusiastically, actually really happy about it. Of course the real reason was that anxious alien robots were in the backyard.
* The entire ''HarryPotter and the Half-Blood Prince'' film is just one cockblock after another for Harry. After Dumbledore ruins Harry's chance with a cute waitress, Hermione smacks Harry for even looking at Romilda Vane, and his date with Luna never gets past "just friends", Harry then has this happen TWICE with his true love Ginny. The first time, Ron sits down in the couch between them with an oversized plate of pies. And it just gets better when a bathrobe-clad Ginny is interrupted in kissing Harry when a gaggle of Deatheaters come right the frig out of nowhere and wreak havoc upon The Burrow. Later he finally gets one tiny kiss...and she's gone when he opens his eyes. Oh well, maybe next time. After Voldemort's defeated, or something....
** Technically he never intended to go past "just friends" with Luna.
* ''{{Imagine Me and You}}'': the long-awaited make-out scene between Luce and Rachel is interrupted by the sound of Rachel's husband's voice.
* ''The {{X-Files}}: Fight the Future'': When Mulder and Scully are about to kiss, Scully is [[spoiler:stung by a bee.]]
** Unless, of course, you watch the blooper (in which Gillian throws David against the wall, kissing him) or a real deal deleted scene, in which the two actually do kiss, prompting Mulder to pick Scully up and go...offscreen.
* In ''NottingHill'' just before the "I'm also just a girl, standing in front of a boy" speech, Will and Anna are interrupted by a random customer and by a phone call from Will's mother.
* From {{Enchanted}}, during the ball scene, Robert and Giselle were [[DanceOfRomance dancing together]], including Robert singing softly in Giselle's ear (when he earlier claimed that he didn't sing), leaning quite close to each other, when Nancy and Edward interrupted them.
* Tallahassee does this in ''{{Zombieland}}''.

** The best part is, he accidentally ruined the moment by coming in and asking if they could help him build a ''pillow fort''.
* RonHoward's character Genius from the ''[[MysteryScienceTheater3000 MST3K]]''-featured movie ''VillageOfTheGiants'' is this early in the film.
* In the apparently-never-heard-of movie ''Space Camp'', Kevin and Kathryn's kiss is interrupted by two of the camp counselors, because they weren't supposed to be outside of the camp after dark.
* "[[{{Superbad}} You just cockblocked McLovin, man!]] He's our friend, we should be ''guiding'' his cock."

* A much earlier example of the meddling robot (a la [[StarWars C-3PO]]/[[{{Spaceballs}} Dot Matrix]]) appears in the Robert Sheckley short story ''Human Man's Burden''. Every time the man and the woman start edging towards expressing their true feelings, an obnoxious marrying-bot bursts in, ruining the moment. Some other robots finally physically restrain the intruder long enough to allow the couple to clinch.
* ''ThursdayNext'''s time-traveling father does this to Thursday and Landen in the first book when he shows up (freezing time for everyone but himself and Thursday) to have a chat with his daughter about the invention of the banana -- while she and Landen are having a moment.
* That's exactly what happens in ''{{Harry Potter and the Deathly Hallows}}'', when Ginny invites Harry to her bedroom to give him his [[IfYouKnowWhatIMean birthday present]]. How far they would've gone is debatable, but they clearly would've gone past "Thank you for the gift." if Ron hadn't shown up to assassinate the moment.
* In the third ''KateDaniels'' novel, Kate and Curran are having hot and heavy makeouts in a hot tub when oblivious Derek comes in and asks Curran's opinion on another matter. After he leaves, Kate shuts Curran down cold, the break giving her a chance to regain her willpower and her resolution not to get romantically involved.
* In ''[[XWingSeries Starfighters of Adumar]]'', Wedge and Iella, who were lovers once but became estranged, are giving little hints about hooking up again, but then someone bursts into the room across the hall to start a [[ProudWarriorRace duel for honor]], and they pull back.
* Oh so many times in The DarkestPowers Trilogy. Especially with Chloe and Derek. Simon is a master cockblocker.

* [[TropeNamer Named]] from a running gag in an episode of ''{{Scrubs}}''. Whenever J.D. worked up the nerve to ask Kim out on a date, Elliot would step in and chat with her girl-pal. Cue title-card: ''[[http://www.youtube.com/watch?v=Uc_hDy8xk0Y ELLIOT REID: MOMENT KILLER]]''.
** Elliot/J.D. had this happen to them in one of the first (pilot?) episodes, when J.D. remarks about the timelimit before you enter "the friend zone" after a near-kiss, just as he is about to get in before the time limit, Dr Cox jumps into the room and kills the moment.
* ''{{iCarly}}'': Spencer does this to all 3 of them: he cockblocks Carly hard in her attempt to kiss Shane in ''iSaw Him First''; when Freddie hits on Carly in ''iDon't Wanna Fight'', a flush is heard from Spencer's toilet; and as for Seddie fans, Spencer breaking in to find his banjo before they even answer Carly's question if Sam and Freddie liked their kiss.
** The episode ''iSaw Him First'' is quite full of moment killers where both girls attempt to kiss Shane first in all futility.
** Also, Mrs. Benson abruptly interrupts the make-out session between Carly and Freddie in ''iSaved Your Life''. Which at half an hour and going strong, might have been leading towards, or have already involved, something more than just making out.
* ''{{Friends}}'' did this between Ross and Rachel. In "The One with the Blackout", Ross is about to declare his feelings to Rachel on the balcony, then gets attacked by a psycho cat who belongs, of course, to [[ThePaolo Paolo]].
** Also, in "The One Where the Monkey Gets Away", Ross is about to declare his feelings to Rachel ''again'', when her ex-fiance barges into the apartment.
** This happens again with Rachel in The One Where Chandler Doesn't Like Dogs when she is about to reveal her feeling to her assistant Tag until he realizes that his car is being stolen.
* Constantly occurring in the seventh season finale of ''{{Frasier}}'', as nearly every supporting character from the episode enters at one point or another, interrupting [[spoiler:Niles confessing his feelings for Daphne]].
** Also in the seventh season, Frasier and Roz come quite close to hooking up when Kenny barges in unknowingly interrupting them. Of course Frasier and Roz [[spoiler:do eventually sleep together in season 9, the aftermath of which can be seen as closure for Frasier/Roz shippers who can now see that they]] are better suited as [[JustFriends Just Friends.]]
* Parodied in the ''SM:TV'' Live Chums sketches, "Me and Cat alone in the flat..." However, Mary being Mary, she understood they had to leave.
* In the ''{{Firefly}}'' episode "Objects in Space", Simon and Kaylee are talking, one thing leads to another, they both lean in, about to kiss for the first time, and then Book interrupts by accident.
** Simon also has the dubious distinction of having killed at least one moment on his own, though. When alone with Kaylee, in a freak show of sorts, he gives as reason that he is attracted to her, that she is the only woman in his life who is neither married, a "professional," or a close blood relative. Quoth Wash, "Oh my God! It's grotesque! Oh, and there's something in a jar."
* In ''{{Farscape}}'' Aeryn and John are stranded, apparently going to die. So of course they kiss and start taking off their clothes. Then D'Argo shows up, doing his BigDamnHeroes impression - easily a {{Crowning Moment of Funny}} what with Aeryn's pissed-off voice ("Someone's ''docking''?!") and D'Argo's obvious amusement. Also notable is that Aeryn manages to be the moment killer in most of their future romantic moments. Though attacking spaceships, imminent death and Scorpius-take-overs do manage to contribute to aborted romantic moments.
* In ''TheOffice'' fourth season finale, Jim is about to [[spoiler:propose to Pam]], which the show had been hinting at in recent episodes, when [[spoiler:Andy]] asks [[spoiler:Angela]] to marry him.
** Earlier seasons often featured Jim and Pam having a moment, only for it to be interrupted by the people they were actually ''with'' at the time...
* A very unique version happens in the third season finale of ''{{Angel}}''. Cordelia asked Angel to meet her at romantic spot on the beach to talk about their feelings, and very strange things happen to prevent that from happening. [[spoiler:Angel was betrayed by his son, [[FateWorseThanDeath shackled up in a casket and dropped into the ocean.]] Cordelia AscendedToAHigherPlaneOfExistence.]] It sorta [[ItMakesSenseInContext Makes Sense In Context.]]
** There's also the end of "Waiting in the Wings", when Angel is trying to tell Cordy about his feelings for her...and then Groo shows up.
* This happens quite literally in ''LifeOnMars''. Sam Tyler is leaning over the table to kiss WPC Cartwright... when his future self has an induced heart attack.
** Count how many times Gene Hunt interrupts a heart-to-heart talk between Sam and Annie throughout both seasons.
*** He's paid back in ''{{Ashes to Ashes}}'', though. Every time Gene and Alex get near each other, Shaz pops in with some vital bit of info or other.
*** In the most recent episode of ''{{Ashes to Ashes}}'', [[spoiler:Jim Keats]] manages to pull off one hell of an epic cock block. Mind you, that was accomplished with [[spoiler:pictures of Sam Tyler]] so maybe he deserves the credit after all...
* Speaking of John Simm, how has the recent heart-to-heart between the Doctor and the Master in ''DoctorWho'' not been mentioned yet? The Doctor is persuading the Master to come and travel with him through the universe, the Master is going all teary-eyed and mellow, there's a declaration of affection on the Doctor's part... and then Wilfred shouts his way into the conversation. [[MomentKiller Arg]].
** Turnabout is fairplay, though, since the Doctor himself is often guilty of this; most recently in "The Lodger", when Craig, his landlord and Hapless NiceGuy, has invited his best friend Sophie around to finally admit to her that he's in love with her. He's just about to blurt it out when cue the Doctor, having decided to rewire the house's electricity.
* ''{{Smallville}}'': Clark and Lois are about to kiss for the first time, "officially", when there is a shout of "Oh my god!" and Clark's ex, Lana Lang, walks in.
* Happens to [[BuffyTheVampireSlayer Buffy]] and Angel when they first kiss -- Angel vamps out unexpectedly. This is how Buffy finds out about Angel's true nature.
** A more long-lasting moment killer is when Faith started to tetter towards TheDarkSide and Angel managed to capture her before she killed Xander. While talking her down and actually getting her to listen, Wesley burst in with a Watchers Council squad to apprehend her. This effectively ruined any chance to stop her before she made a full FaceHeelTurn. Although this was the start of a unique friendship between her and Angel because of being NotSoDifferent.
** [=BtVS=] was rife with Moment Killers. Another one that springs immediately to mind comes from the beginning of Season Two. Willow and Xander are out for a nighttime stroll, and Xander playfully dabs Willow's nose with ice cream. He's just about to kiss it off when they are interrupted by a vampire, which Buffy promptly arrives back in town to kill. Willow later attempts to recreate the moment, but by that point, Xander is back to being all hung up over Buffy.
* In ''TrueBlood'', Tara and Eggs' first near-makeout is interrupted by Maryanne's servant carrying towels. Maryanne is [[BadBoss not happy about this]].
* In ''{{Merlin}}'', Merlin accidently interrupts a tender moment between [[spoiler:Gwen and Arthur]] (spoiler because the episode in question first aired only a few hours before time of writing in UK, and US viewers may have not seen it yet.)
* Dan for Blair and Chuck on ''GossipGirl'' in the season two episode where she has decided to take the chance and tell Chuck that she loves him. Ironic since she originally turned to Dan for help on how to get Chuck into bed ''without'' telling him she loved him (he refused to put out unless she confessed love and she didn't want to let him win) and Dan gave her a little speech that convinced her that it was better to take the chance and risk her pride for a shot at happiness. Dan then does a 180 and realizes he hates Blair so he intercepts her on her way to see Chuck and basically tells her she's doomed if she confesses love to Chuck Bass. She tells him he's wrong, but when she's face to face with Chuck she loses nerve and they end up arguing instead.
** Also Vanessa in season one, when Dan and Serena try to have sex for the first time.
** Dan does it to Chuck and Blair again in the season three finale. Chuck's on one knee, box in hand, says "Blair, will you-" and then Dan punches Chuck [[spoiler: for sleeping with his sister hours before.]]
* Finn for Puck and Quinn, ''twice'', in the same episode of ''{{Glee}}''. First when the two were [[AlmostKiss about to kiss]], and then when Puck tells her he wants to be with her and their baby and she tells him he's special.
* A horrifically ''literal'' example pops up in the ''{{Dollhouse}}'' episode "Getting Closer." Topher and Bennett do outright kiss. [[spoiler:Moments later, Saunders shoots Bennett in the head.]]
* ''TheMightyBoosh'' has a couple, albeit somewhat variated: in the first season episode 'Tundra' Howard and Vince are tied up and about to be frozen to death by the evil black frost. Vince and Howard break into a crimp; then Howard suddenly blurts out that he loves Vince. Vince starts to laugh, but when Howard becomes angry and hurt, Vince admits he loves him back. Then, seconds later, Dixon Bainbridge enters the ice cave and spoils the moment. It's variated because a) They aren't looking into each others eyes and b) it's somewhat unclear if Howard means he loves Vince in a platonic or romantic way. It's fairly obvious though that Vince meant his declaration romantically. The second, more brutal moment killer comes about in the episode 'Jungle'. Vince becomes fed up with Howard's constant worship of his mentor, Tommy, and asks Howard if he was in love with Tommy. Howard laughs it off; then Vince moves closer to Howard, looks into his eyes and asks if he ever kissed him. The moment is spoiled when Howard storms off.
* Toward the end of ''{{Chuck}}'s'' second season, Chuck and Sarah finally make out and start to have sex, but when Chuck gets a condom from his wallet, he only finds an IOU from Morgan. This sufficiently kills the moment that their relationship stalls for another season.
* On ''DarkAngel'' the moment killer was Logan's eternally helpful PT, Bling and killing moments was very nearly his entire raison d'etre.
* A non-romantic example in Supernatural. [[spoiler: As Michael and Lucifer are getting ready to throw down, it's a dead serious moment, full of dramatic tension, Lucifer's "last temptation" to Michael, and they are ready. Then Dean rolls down the road, his car blasting [[CrowningMusicOfAwesome Rock of Ages by Def Leppard.]] Cue Lucy and Mike going "Wtf?"]]
* According to RemingtonSteele the ''entire universe'' was involved in a vast conspiracy to prevent him from getting chummy with Laura Holt.

* Happened at least once between Wes and Jen in ''PowerRangersTimeForce''. And even after everything was spout the two never kissed.
* [[{{Bones}} That goddamn]] ''[[{{Bones}} clown.]]''
* Happens a few times in early episodes of ''GetSmart'' - in the pilot, Smart realizes 99 is a girl (after quite awhile), they draw closer, closer, and his dog Fang lets out a bark. 99 says "He's right." and they go after the bad guys.
* An (arguably) non-romantic version in ''ThePacific'': Sledge and Snafu have just shared a sweet moment in which Snafu wordlessly comforts his friend over the death of his dog by leaning against his shoulder...and then Hamm barges in to announce that his brother was on a ship that was attacked by kamikazes. (Snafu: ''"Wow."'')
* Several moments between Sydney and Vaughn were killed on ''{{Alias}}'': at the end of The Counteragent, Asst. Director Kendall interrupts a particularly tender moment between the two; at the beginning of Phase One, Weiss bursts into the "flirting corner" with exceptionally awful timing, [[spoiler: though they later [[CrowningMomentofAwesome fix]] [[TheyDo that]]]].
* In the ''{{Fringe}}'' episode "Jacksonville," Olivia pulls one on herself, and yet another happens [[spoiler:when she discovers Peter's glimmer before their not-date]].

* In ''{{Persona 3}}'', during the Yakushima Island vacation, the Main Character goes out to comfort Yukari after she runs off upon discovering that [[spoiler:her father was responsible for creating the Shadow threat the party has been fighting]]. After a brief and [[SlapSlapKiss somewhat stormy]] conversation, depending on the player's dialog choices, the Main Character will move to embrace Yukari... and then the two will fly apart when [[IdiotHero Junpei]] shows up to bring them back inside. True to form, Junpei asks "Did I miss something?"
* [[http://www.youtube.com/watch?v=p2PIt8GFtII These]] [[http://www.youtube.com/watch?v=OI_Cp9fk7xU videos]] [[http://www.youtube.com/watch?v=oJqQ0ZZhCM8 featuring]] [[http://www.youtube.com/watch?v=k398dBmy08w a]] ''really'' popular [[FoeYay hateship]] between [[{{Touhou}} Kaguya and Mokou]] show that [[ScrewySquirrel Tewi]] also part-times as a MomentKiller. [[http://www.youtube.com/watch?v=yNYREw2PEeU This]] is what happens when Tewi is left behind. (By the way, all these are [[FanVid fanmade]]. Yuri fans, [[{{Squee}} enjoy]].)
* In a cut scene in ''MaxPayne 2'', Max and Mona are in an alley heavily making out to the point where Mona is leaning against a wall with her legs wrapped around Max and her shirt pulled up to her neck and Max * ahem* below that, when they hear Mooks yelling and running towards them. They then have to end their previous activities.
* In ''[[MetalGearSolid MGS3: Snake Eater]]'', Naked Snake managed to cock-block ''himself''. EVA moved in to kiss him and was suggesting a little more when he out of the blue decided to offer her a roasted snake, while moving his head away from her.
** Later on, he declares his love for her!... except he doesn't:

* Shepard and your chosen LoveInterest in ''MassEffect'' are getting quite close (should you pursue the romantic subplot between them) when Joker interrupts. Shepard can accuse him of doing it intentionally.
* At the end of ''UnchartedDrakesFortune'', just as Nate and Elena are leaning in suggestively for a kiss, Sully comes out of nowhere and says "You two got a funny idea of romantic!" therefore breaking up the romance... and making it a dreaded AlmostKiss. Nice job, Sully.
* [[JakAndDaxter Daxter. Daxter Daxter Daxter Daxter Daxter]]. Turning a kiss into an AlmostKiss once would be forgivable, but doing it twice? [[spoiler:Thankfully, not only does Jak get his revenge in ''Jak III'', but at the end of ''Jak X'' Daxter {{Lampshade|Hanging}}s this with "Would you just kiss her already? Sheesh!"]]
* Not sure if this counts 100%, but in ''{{The Legend of Zelda}} PhantomHourglass'', Tetra finally [[IGotBetter gets better]] from being TakenForGranite, and Link and Tetra look one another in the eyes. Smiling, they reach their hands out to one another in slow-motion, and just as they're about to touch, [[spoiler:[[BigBad Bellum]] bursts through the ceiling and steals Tetra away]].
* Becomes a running gag in ''AceAttorney'', when Detective Gumshoe walks in, accompanied by a loud "THUMP" and exclaims "Hope I'm not interrupting anything!" Cue the icy stares and Gumshoe sulking off.
** After which Phoenix will promptly call him over, it was a running gag in the bonus fifth case where Gumshoe would then retort "You're doing this on purpose aren't you? Making a gumshoe run around while on duty! And on top of that you drag me here! I've seen happier people at funerals!"
* ''FinalFantasyIX'' has one scene involving Steiner and Beatrix together... which gets wrecked when Baku walks into them, sneezing loudly.
* [[MonkeyIsland Guybrush]] has just proposed to Elaine, and put the engagement ring on her finger, when Wally appears and innocently informs them that the ring has a HUGE VOODOO CURSE on it. Elaine is '''not''' happy.
* In ''EarthboundZero'', right after Ninten and Ana confess their love for each other, Teddy bursts in and a [[HumongousMecha giant robot]] attacks them, [[spoiler:killing Teddy.]] Real moodkiller there.
* In the ''[[FateStayNight Fate/stay night]]'' games, especially hollow ataraxia, Sakura tends to walk in at bad moments. This is especially bad in hollow ataraxia where she manages to walk in on just seemingly every scene that Shirou and [[EnsembleDarkhorse Rider]] have together. Perhaps justified though--Sakura is Rider's Master, also likes Shirou, and the few times she doesn't walk in, [[spoiler:Rider and Shirou tend to end up naked.]]

* In the ''HomestarRunner'' cartoon ''[[http://www.homestarrunner.com/datenite.html Date Nite]]'', Homestar and Strong Bad do this on purpose to Marzipan and The Cheat.

* This becomes a RunningGag in ''KidRadd''.
* ''{{Casey and Andy}}'', [[http://www.galactanet.com/comic/view.php?strip=627 Strip 627]]: Andy pops in to inform Casey of the arrival of Jenn's time-traveling daughter, and the necessity to embark on further temporal misadventures to save the timeline... while he's in the middle of proposing to his girlfriend. Of course, Mary is very understanding, and even lets Casey go off with Andy to save the timeline.
** [[http://galactanet.com/comic/view.php?strip=483 "Cockblocked by God. That's gotta suck"]]
* Chapter 18 of ''GunnerkriggCourt'' begins with Kat walking in on her parents as they're getting intimate.
** Much cheer was had when they carried on after she had left the room.
** Also, in Chapter 30, with Parley having admitted her love for Andrew, as they're moving in for their first kiss, Antimony interrupts them by continuing the discussion they were having beforehand.
** Then seconds later does it ''again'' when the moment is in danger of reestablishing itself.
* Rumisiel plays the MomentKiller on Ash and Em in an early ''{{Misfile}}'' strip, sending their relationship straight down BelligerentSexualTension alley.
** And [[http://www.misfile.com/?page=1113 here]] we have Ash and Em having a significant moment, with Em just on the verge of saying that... Y HELO THAR, MISSI!
* Happened in ''{{The Order of the Stick}}'' [[http://www.giantitp.com/comics/oots0316.html # 316]]: Haley attempts to kiss Elan during New Year's Eve, but can't bring herself to do it. When she finally gets the courage, another girl jumps in and kisses Elan instead.
** [[http://www.giantitp.com/comics/oots0292.html "Just curious, do you get XP for killing this dramatic moment?"]]
* ''[=~The Adventures of Dr. McNinja~=]'': A velociraptor-riding bandito (roll with it) makes a very cool speech at the end of [[http://www.drmcninja.com/page.php?pageNum=33&issue=3 this strip]]. Then the doctor has to go [[http://www.drmcninja.com/page.php?pageNum=34&issue=3 and ruin it.]]
* ''ElGoonishShive'' had this often, usually with Sarah doing the moment-killing -- and occasionally realizing that she'd just killed a moment. Also {{lampshaded}} in the process of {{aversion}} when Tedd asks Grace why she's leading him away from [[SchoolgirlLesbians Ellen and Nanase]] as if they need privacy for some reason.
** The Demonic Duck [[spoiler:deliberately interrupts Justin and Susan during the party using his illusion powers. Afterward, they're both grateful the "light bulb burned out".]]
* In ''[=~8-Bit Theater~=]'', Black Mage accidentally Killed his own Moment. The one time when it seemed he might be slowly winning the heart of White Mage, he casually let it slip that his Hadoken siphons love out of the universe every time it's used... and that he sacrificed several children to obtain the spell. She didn't take it too well. Tough luck for BM, but if he ever reads this page, he'll feel better knowing he killed something.
* The title character of ''[[TsunamiChannel Experimental Comic Kotone]]'' is a MomentKiller, a theory that Konstantin forcibly tests out [[http://www.tsunamichannel.com/index.php?date=2003-08-07&comic=ExCoKo here]]
* Agatha and Gil's AlmostKiss in ''GirlGenius'' is [[ChandlersLaw interrupted]] by [[http://www.girlgeniusonline.com/comic.php?date=20090511 an angry professor on a mechanized Gatling gun carrier.]] This fact, all by itself, tells you everything you need to know about the comic.
** Gil's reaction to being shot at is an indignant 'hey!' that is clearly a reaction to the moment being killed rather than him almost being killed.
* ''SluggyFreelance'': Torg and Zoe have something like this happen a few times.
** In the chapter "Summer Vacation", Zoe feels attracted to Torg after he does something heroic (if stupid). Even Kiki comments that they're going to smooch. But when Zoe starts telling how brave she thinks he was, he obliviously says that if ''she'' was impressed by it, another woman he has a crush on is "going to flip", and makes to call her. The moment is killed so thoroughly Zoe stops showing any such inclination for years.
** Later, having realized he's in love with her, Torg tries to win Zoe's heart with a giant bejewelled necklace he found in a pyramid as a Christmas present. She's quite taken with the gift, until she puts it on and it turns her into a camel.
** Subverted in "Love Potion," when Torg and Zoe look at each other by accident while they think they're under the influence of a potion that makes people madly attracted to the first person they see. As they're staring at each other, Gwynn pops up to tell them the potion's effects have worn off. After she leaves, Torg finally asks Zoe out and she readily accepts.
** The biggest moment killer of all is in the same chapter, during said date. Just as he's contemplating leaning over and kissing her, [[spoiler:he suddenly finds lips touching his - but they belong to a [[NeverFoundTheBody back-from-the-dead]] assassin who is '''extremely''' ''{{yandere}}'' towards him. To protect Zoe, he has to insult her and then laugh it off when said assassin kicks her in the face before dragging him away to get married.]] ''Epic'' moment kill.
* Deliberately set up in ''{{Blip}}''. When Hester gets set up on an unwanted date, she arranges for her friend K to "accidentally" run into them and act as a third wheel for the remainder of the date.
* ''NerfNow'', [[http://www.nerfnow.com/comic/323 this]] strip. [[{{TeamFortress2}} Scout]] - an impatient, twitchy loudmouth - is of course a natural MomentKiller.

* In the fourth book of ''{{Shadow of the Templar}}'', Jeremy, normally calm and emotionally unaffected, suddenly kisses Simon passionately and seems to be about to tell him something important. Of course, they're interrupted before he can get it out.
* In ''{{Awkward}}'', Alex performs this function for Lester and Steph. Lester being the target of his [[StalkerWithACrush stalkerish affections]], it's entirely intentional. Lester [[BewareTheNiceOnes doesn't take it well]].
* In [[TheSpoonyExperiment Spoony's]] Vlog/Review of the New Moon movie, he comments on how Bella and Jacob are about to kiss several times before something stupid happens, such as, as he put it, a guy runs in yelling "HEY YOU GUYS I MADE MUFFINS!!".

* My gods, the amount of this with the ''TeenTitans'' movie ''Trouble in Tokyo'' drove this rabid Robin/Starfire shipper ''nuts''. "No! Why did you walk in now? They were about to, and Robin's wearing those! Arghhh!"
** Then you must have been relieved when they finally got to that part at the end of the movie.
** And there were plenty of these in the series itself.
** Which is pretty freaking funny because anyone that knows the slightest thing about the comic series knows they did a ton more than kiss. I believe the term is "shared quarters" in Titans' Tower.
** Beast Boy and Raven had, not one but ''two'' of these. The first one was after a tender hug, Cyborg promptly threw a ball of dirty laundry at Beast Boy's head. ItMakesSenseInContext. The second was killed by Beast Boy himself, much to Raven's annoyance.
* Several times in ''[=~Avatar: The Last Airbender~=]''. In "The Earth King", the group was parting ways for a little time, and Aang wanted to confess his feelings to Katara. Just as he said, "I kinda want to tell you something..." Sokka swings his arm around him and excitedly talks about where they are going.
** Zuko and Katara have a gentle moment where Katara was pondering whether to use her healing powers on Zuko's scar... when Aang bursts through the cave wall to come to the rescue. WordOfGod has repeatedly said that nothing romantic was implied in that scene anyway, except maybe a cruel "never-going-to-happen" ShipTease.
*** Shipping aside, that moment also had the potential to trigger Zuko's HeelFaceTurn...
** Zuko also picks a ''very bad time'' for a chat with Sokka...
*** Very, ''very, VERY'' bad. * must unsee*
** And even later when Zuko sits between Aang and Katara when Aang wanted to sit next to Katara. Zuko is really bad at this.
*** Both this and the previous explained moment with Sokka earned Zuko the [[FanNickname nickname]], [[MemeticMutation "Prince Zuko: Master Cock-blocker."]]
** Runs in the family: Azula does it to Zuko and Mai during their sunset picnic.
*** Azula does it on PURPOSE. Zuko simply doesn't think. (He's older and [[IfYouKnowWhatIMean more experienced]] than most of the kids on the show, it's just that he's a bit too self-focused to realize other people might have relationships outside him.)
* Played with on ''CodeLyoko''. After returning from a school break, Yumi wanted to walk to Ulrich about their {{UST}}. No less then three times in 10 minutes, as they tried to have that moment, they were interrupted. [[spoiler:When they finally get the needed 30 seconds, Yumi then gives him the dreaded JustFriends line. Ouch.]]
* In an episode of ''{{The Spectacular Spider-Man}}'', [[UnluckyChildhoodFriend Gwen]] keeps attempting to suggest that she'd like to go to the HighSchoolDance with him (since she CannotSpitItOut any other way), but Peter is ''her'' MomentKiller by confessing that he had been going to [[CakeEater go with an older girl, but she turned him down.]] And then Gwen tries to be a little more blunt...("She's not the only girl who would...")...before Peter changes the subject. WhatAnIdiot.
* In ''JusticeLeagueUnlimited'', Flash managed a ''dramatic'' moment killer: the league makes a perfect, epic entrance and the awe of the moment gets {{Narm}}ed by Flash shouting "Ta da!" More traditional examples happen to moments between Green Lantern and Hawkgirl.
** A few of these happened to Batman and Wonder Woman. One time, they were discussing about their potential relationship when an alarm sounded off.
* Wade does this a few times in ''KimPossible''. Apparently it was funny according to the writers.
* In the ''{{Futurama}}'' episode "A Flight to Remember", where the characters travel on a cruise spaceship:

** In the episode "Parasites Lost", Fry himself kills the moment. First, he runs away to get rid of the parasites, hoping to prove that Leela loves him and not just what the parasites did for him. When he came back, and Leela was rather miraculously still in the mood, he managed to tick her off by bringing an old girlfriend into the conversation.
*** Doubles as a CrowningMomentofAwesome in this troper's opinion, that Fry would rather win her over while remaining who he is instead of letting the miracle worms keep turning him into Batman.
* [[LeisureSuitLarry Cody]] from ''TotalDramaIsland'' constantly kills Gwen and Trent moments by trying to win Gwen's affections, he even manages to pull this off ''in the theme song.''
* In ''{{Superman}}: Brainiac Attacks'', the titluar villain is the moment killer for Clark and Lois. Let's face it, all supervillains seem to have perfect timing for moment killing...
* In the ''Hulk vs. Wolverine'' this seems to be Deadpool's role, though he kills drama rather than romance. For example, as the Weapon X members resolve to hunt down Wolverine and there's the traditional menacing shot of the team assembled and ready for violence, Deadpool shouts, "Strike a pose!"
* The Super Robot does this to Sprx and Nova in ''SuperRobotMonkeyTeamHyperforceGo'', [[DyingDeclarationOfLove ironically enough by saving their lives.]]
* In ''TheFairlyOddparents'', "Wishology" Part III had a RunningGag about Timmy and Trixie trying to kiss, but a different character would interrupt them each time: first [[AlienAmongUs Mark]], then [[BumblingDad Mr. Turner]], then finally [[DrillSergeantNasty Jorgen]], who may be the worst (or best, depending on how you look at it), since [[spoiler:he flat out tells Timmy he's wiping everyone's memories, effectively hitting a ResetButton of the relationship]].
* Parodied in ''SouthPark'': For most of the series, every time it's even theoretically possible Stan and Wendy might be on their way toward having a moment, he throws up. Usually on her.
* Tucker Foley from ''DannyPhantom''.
* Several happen for Candace and Jeremy in ''{{Phineas and Ferb}}'', mostly due to Candace's status as the resident ChewToy of the show.

* Comedian Pablo Francisco describes this trope perfectly in one of his sets.
* Billy Joel's song [[http://www.youtube.com/watch?v=1bAKX2DIooA "Leave a Tender Moment Alone"]] is about this but the MomentKiller is the narrator himself (and in once case, the girl he fancies)
* In PattonOswalt's comedy album ''Werewolves & Lollipops'', Oswalt is building a serious moment about birth control and having an intimate relationship when... [[http://www.youtube.com/watch?v=6ruDZ6qpa4E this]] happens (at the 6:20 mark).