History Main / IWarnedYou

* ''Film/{{Gremlins}}'': "With Mogwai, comes much responsibility. I cannot sell him at any price." Randall Peltzer acquires a mogwai anyway. Warnings about them are ignored and the gremlins run wild. [[spoiler:Ironically, the warnings ''were'' heeded. The mistake came from ''trusting an analog clock that turned out to be stopped'' because the evil Mogwai (later Gremlin) Stripe had sabotaged it. The "do not get them wet" rule being broken was an accident.]]

If PlayedForLaughs, expect TheCassandra to be an [[InsufferableGenius exaggeratively smug]] or [[GoodIsNotNice jerkish]] in using this trope (a likely consistent trait that lent to no-one listening to them in the first place) and at least one indignant victim to try and silence them (usually by yelling a bitter "[[BigShutUp Oh Shut Up!]]"). Due to often gloat-heavy context of this trope (and the likely two-way arrogance that caused them to be ignored in the first place), the previously dismissive characters at the very least will often be a SoreLoser and only admit TheCassandra was right and apologise ''very'' begrudgingly [[NeverMyFault at best]] (unless they need to beg them to fix the problem caused by this).

'''Berlioz:''' Aw, shut up Toulouse!

* ''WebAnimation/KnightsOfTheOldRepublicCinematicUniverse'': When the Jedi twins Jade and Cara combine their powers to create a powerful Force Wave, they warn Bobec to take a hold of something. He gets knocked on his back and asks for a little warning next time. The twins reply in unison that they did warn him, and another Jedi confirms it's true.

* ''WebAnimation/KnightsOfTheOldRepublicCinematicUniverse'': When [[spoiler:Zaalbar]] is going through with his HeroicSacrifice, he grabs one of the Sith warriors and bludgeons two others with him before throwing him at two Sith troopers.

* In the children's book ''The Silly Gooses,'' Mr. Goose constantly does various goofy things, much to the annoyance of his flock, who warn him that he will never find a wife if he doesn't stop being so silly. Soon everyone gets married except Mr. Goose, who gets an I Told You So from the married couples. Subverted when he actually does find a female goose who is as silly as he is, [[LikeGoesWithLike and they get married.]]

* ''Literature/{{Discworld}}'': In ''Literature/TheLastContinent'', it's noted that wizards go after SchmuckBait so often that it makes DO NOT signs rather pointless, at the very least you could say, as you handed the offending wizard's remains to his grieving relatives, "We ''told'' him not to."

* Big Bird in ''Series/SesameStreet'' goes into a bit of this when the adults meet Snuffy for the first time and realize [[NotSoImaginaryFriend he had been telling the truth all these years about his existence,]] but in this case, Big Bird isn't exactly gloating as he is just glad to find he was actually right.

-->'''Dad''': I ''told'' you that chili sauce was hot!\\
'''Mom''': Yecchh, he spewed it all across the table!

-->'''Toulouse''': I told you it was Edgar!\\
'''Berlioz''': Aw, shut up Toulouse!

-->'''Cogsworth:''' ''*snide*'' Ooh, couldn't keep quiet, could we? Just had to invite him to stay, didn't we? "Zerve him tea in ze master's chair, pet de pooch!"
-->'''Lumière:''' ''*sulking*'' I was trying to be hospitable.

* Another Disney example is in ''WesternAnimation/RobinHood1973''. This is [[TheDragon Sir]] [[SmugSnake Hiss]]'s usual rebuttal to Prince John's traps always failing, as well as details that the Prince is too spoiled to acknowledge.

* ''Film/TheDarkKnight''

* ''Film/FantasticFour2005'': Ben Grimm rubs it in while he helps free Reed Richards from being frozen by liquid nitrogen, courtesy of Victor von Doom.

* From ''Film/GetOut2017'': [[spoiler:"Man, I ''told'' you not to go in that house."]]

* ''Film/{{Gremlins}}''
-->'''Grandfather:''' With Mogwai, comes much responsibility. I cannot sell him at any price.
** Randall Peltzer acquires a mogwai anyway. Warnings about them are ignored and the gremlins run wild.
--->'''Grandfather:''' I warned you. With mogwai comes much responsibility. But you didn't listen.
** Ironically, the warnings ''were'' heeded. The mistake came from ''trusting an analog clock that turned out to be stopped'' because the evil Mogwai (later Gremlin) Stripe had sabotaged it. The "do not get them wet" rule being broken was an accident.

* In ''Film/TheMummy1999'' remake, when the Americans find Imhotep's tomb and one of them reads the warning etched on it. Their guide (and DirtyCoward) Beni runs off yelling to beware the curse. They don't believe him thinking he's being superstitious. Of course Imhotep gets loose and starts draining the life of those that opened the casket. One of the Americans manages to escape but with his eyes and tongue taken. As the surviving American rests at a hotel, Beni (now working for Imhotep) tricks said American into meeting with a healer who is really Imhotep in disguise. Before the American is drained, Beni tells him that he did warn them not to open the tomb.

* ''Film/PitchBlack'': When Johns is considering releasing Riddick until they get off the planet, Riddick gives Johns an honest warning that he'd be better off killing Riddick there and then rather than run the risk of getting knived by Riddick in pursuit of a bounty. [[spoiler:Riddick reminds Johns of this when he kills him to use Johns as bait for the predators.]]

-->'''Luthor:'''''(smirk)'' I told ya.

* The Vice President in ''Film/TheDayAfterTomorrow'' gets this served to him by a geologist after ignoring the warnings of global warming by Jack Hall (and likely costing millions of lives by refusing to take any action in time).
* In ''Film/TotalRecall1990'', the BigBad Cohaagen constantly lambasts his Dragon, Richter for trying to kill Quaid (in fact an old friend of his in a mind switch operation gone wrong), reminding him [[IDontPayYouToThink he's not paid to think]] when he reminds him of the dangers he's enforcing. When Quaid resists his own plan to reformat his mind and risks destroying his power, Richter smugly asks whether he wants to reconsider:

* In ''Literature/TheLastContinent'', it's noted that wizards go after SchmuckBait so often that it makes DO NOT signs rather pointless, at the very least you could say, as you handed the offending wizard's remains to his grieving relatives, "We ''told'' him not to."

* Polly to Digory in ''Literature/TheMagiciansNephew'' after he falls for the ShmuckBait that [[NiceJobBreakingItHero wakes up the White Witch]]. In ''Literature/PrinceCaspian'', when it turns out that Lucy was right about the route the group should have taken and they'll have to go back the way they came, Peter congratulates her on pointing this out ''without'' saying "I told you so."

* Subverted in ''Literature/ASongOfIceAndFire'' during [[TheCaligula Joffrey's]] eventful reign. Both Tyrion and Tywin Lannisters attempt various lessons amounting to "if you continue with this [[StupidEvil hare-brained idiocy]], you will wind up dead, you fool!", but Joff doesn't usually let them finish. By the time the chickens come home to roost, neither Tyrion nor Tywin manage the "told you so" bit, being way too busy dealing with the fall-out to find the time. Nevertheless, the phrase looms, unspoken.

-->'''Marston Waters''': Ser Amaury was sworn to protect you, to give his own life for yours if need be. He was your leal man, as I am. He did not deserve such a death at the hands of such a beast.
-->'''Aegon III''': Sandoq is no beast. He cannot speak, but he hears and he obeys. I commanded Ser Amaury to be gone and he refused. My brother warned him what would happen if he stepped beyond the axe. The vows of the Kingsguard include obedience, I thought.

-->'''King Viserys I Targaryen''': You were warned. I will hear no more of these lies.

* In Andy Griffith's ''Just Crazy'', [[AuthorAvatar Andy]] tries to warn his father that he's only [[NakedPeopleTrappedOutside locked outside naked]] because their dog Sooty has gone crazy and taken his towel. His father doesn't believe him, but when Sooty spies his towel...
-->'''Andy:''' I hate to say I told you so. I mean I ''really'' hate to say I told you so. ''[deep breath]'' '''But I--'''\\
'''Andy's Father:''' Shut up!

* In one episode of ''Series/MalcolmInTheMiddle'', Francis' friend, Richie, is sent to the same MilitarySchool, and when he meets [[DeanBitterman Commandant Spangler]], Spangler treats him like a buddy, allowing him to go about out of uniform while on campus, decorate his room any way he wants, and talk to him in a very casual manner, things that would generally lead to other cadets suffering some sort of [[DisproportionateRetribution cruel and unusual punishment.]] When Francis confronts Spangler over the DoubleStandard surrounding Richie's behavior, Spangler confesses that treating Richie better than the other cadets is the only way to fix him, since the others will hate him so much, that Richie will have no choice but to willingly conform, lest he attract the wrath of the other cadets. When Francis warns Richie of what Spangler is doing, Richie says that Francis is just jealous and share this exchange:
-->'''Francis:''' I warned you.\\

''camera focuses on Francis as he lies down on his bed to read a book''\\
'''Richie:''' ''(Off-screen)'' Hey guys, cool ski masks! ''[[NoHoldsBarredBeatdown (punches land on Richie's body)]]'' Ow! Ahhh!
** In the Season 6 episode ''No Motorcycles'', after the brothers can't work out which of their particular pranks has gotten one of the local bullies after them, Reese points out that he said several years early they needed to better co-ordinate the timing of their pranks to avoid such a situation.
-->'''Dewey''': ''[regarding said bully]'' God, he looks mad! Which one of us do you think he wants?
-->'''Malcolm''': Reese, it's obviously you. That must have been his bike you super-glued to the train tracks!
-->'''Reese''': We don't know that! You were pretty fast and loose with that dog-crap slingshot the other day! How do you know you didn't hit him?
-->'''Malcolm''': ''[looks at Dewey]'' What about you? How many people did you convince to buy those "algebra pills"?
-->'''Dewey''': You know, our lives would be a lot easier if we didn't all pull this crap at the same time!
-->'''Reese''': I suggested a rotating calendar years ago and you guys ignored me. And here we are!

--->'''Yuri''': "Akane... we did stop you... didn't we? But it was you who didn't listen, right, Akane? Did you say $30,000? Not only did you waste your precious time in life and sell your body so cheap, but you even have to pay for that married man. How does it feel to buy such a low life with that much money?"

* ''Webanimation/CampCamp'' has an episode where Quartermaster warns the kids to not wander into an abandoned mansion. When they do, and find a weird orgy that scares Max to the point he ScreamsLikeALittleGirl, Quartermaster makes sure to yell "I WARNED YOU, CHILD!".

* Professor Xavier says this to Logan in ''Film/XMenTheLastStand'' after Phoenix escapes, having been awoken by Logan before Xavier could bring Jean Grey back to normal.

* In ''Webcomic/EveryoneIsHome'', Cloud warns everyone to ''not'' trust Sephiroth just because he did a HeelFaceTurn. No one believes him and this lets Sephiroth poison practically ''the entire Smash roster'' with ease. Once Cloud is revived (being the last one, even), he is ''pissed off'' at what happened and becanse shouting "I warned you!" at ''everyone'' for not taking his warnings seriously.

* ''ComicBook/IncredibleHulk'': Far too many fools to count have heard "Leave Hulk alone" or "Hulk just wants to be left alone" and decided not to listen, continuing to mess with him until he inevitably [[YouWouldntLikeMeWhenImAngry got angry]].

* On Wiki/ThisVeryWiki, the Administrivia/YouHaveBeenWarned page (which is more of a CassandraTruth), or [[PotHole pot-holing]] text to ShmuckBait.

* A tragic case of IJustShotMarvinInTheFace involved an 8-year-old boy at a gun show in which visitors could fire a micro-Uzi. [[https://abcnews.go.com/US/father-christopher-bizilj-died-firing-uzi-urged-son/story?id=12565132 The employee overseeing this]] warned the boy's father ''twice'' about how maybe the kid should be given a less powerful - and non-automatic - weapon to fire. The father insisted, and the recoil from the shots put the barrel towards the poor boy's head, where the fatal shot was delivered.

** In the backstory novel ''Literature/FireAndBlood'' set in the same universe, a detachment of soldiers led by the corrupt Kingsguard knight Ser Amaury Peake are en route to arrest Lady Larra Rogare [[FrameUp on false charges]] when they find their path blocked by her husband, Prince Viserys Targaryen, holding a battleaxe. Viserys bluntly says they're not touching his wife, slams the axe into the drawbridge they're standing on and warns anyone who goes past the axe will die. Peake and his men laugh off the threat and advance...at which point Larra's personal bodyguard, Sandoq the Shadow charges out and, as promised kills the lot of them (ironically, Peake, the last man standing, gets his head split open with said axe). When the Lord Commander of the Kingsguard challenges Viserys's brother, King Aegon III, [[WhatTheHellHero over letting one of his Kingsguard die in such a manner]], Aegon retorts that Peake and his men were warned what would happen if they walked past the axe and [[TooDumbToLive still chose to disobey a royal command]], [[AssholeVictim so they brought their deaths on themselves]].
** Also from ''Fire and Blood'': after an extremely nasty argument between his daughter Rhaenyra's and his second wife Alicent's sides of the family over [[MamasBabyPapasMaybe the legitimacy of Rhaenyra's sons]], King Viserys I Targaryen puts his foot down and declares [[NeverSayThatAgain anyone who calls his grandsons by Rhaenyra bastards]] [[TongueTrauma will lose their tongue for it]]. Several years later, when Rhaenyra asks her father-in-law, Corlys Velaryon, to make her second son Lucerys his heir, Corlys's nephew Vaemond protests he should be the heir because Lucerys is a bastard who can't inherit. Rhaenyra has Vaemond [[VigilanteExecution executed on the spot]] for his words, and Vaemond's family went to King's Landing to protest Rhaneyra's actions...[[TooDumToLive and made the same mistake of calling the king's grandson a bastard in his presence]]. Viserys heard their petition in [[TranquilFury a stony silence]] and then ordered his guards to take them away and have their tongues cut out, insisting he had made it ''very'' clear what would happen to anyone who disobeyed his command on the subject.

* In ''Literature/TheDresdenFiles'', one of the conditions Harry sets when offering [[spoiler:Molly]] apprenticeship is that she must obey his orders: she can question them, but she can't disobey. He tells her to stay out of a particularly dangerous situation, but she ignores him and sneaks along. Dresden, being an accomplished wizard, figures out that she did so[[note]]He throws his staff in the back seat and hits her by accident while she's invisible[[/note]], and gets ''so mad'' that she's not following instructions (in addition to being ramped up on anger from the situation already), that her torments her with a tiny but incredibly hot ball of fire that slowly inches towards her, taunting her to stop it with her power. She is completely unable to do so, and he's utters the trope line, pointing out that it's ''dangerous'' out in the world and she's not ready for it. [[WhatTheHellHero He contemplates letting the ball of fire incinerate her for a few dangerous seconds before he's called out on it by Murphy.]]

* In the backstory novel ''Literature/FireAndBlood'' set in the same universe, a detachment of soldiers led by the corrupt Kingsguard knight Ser Amaury Peake are en route to arrest Lady Larra Rogare on false charges when they find their path blocked by her husband, Prince Viserys Targaryen, holding a battleaxe. Viserys bluntly says they're not touching his wife, slams the axe into the drawbridge they're standing on and warns anyone who goes past the axe will die. Peake and his men laugh off the threat and advance...at which point Larra's personal bodyguard, Sandoq the Shadow charges out and, as promised kills the lot of them (ironically, Peake, the last man standing, gets his head split open with said axe). When the Lord Commander of the Kingsguard challenges Viserys's brother, King Aegon III, [[WhatTheHellHero over letting one of his Kingsguard die in such a manner]], Aegon retorts that Peake and his men were warned what would happen if they walked past the axe and chose to disobey a royal command, so they brough their deaths on themselves.

* In this [[https://www.reddit.com/r/AskReddit/comments/916bh1/wedding_planners_of_reddit_whats_your_horror_story/?utm_source=share&utm_medium=web2x&context=3 grab bag of wedding horror stories from Reddit]], one story is about the submitter's mother who used to make wedding cakes. At one wedding, the mother of the bride wanted to use a Precious Moments car figurine as the cake topper. Unfortunately, it was too heavy for that, as it was made of porcelain and weighed a solid 5 pounds. The submitter's mom told her that, put some flowers on top of the cake instead, and left. An hour later, she got a call from the reception hall that the cake had collapsed because the mother of the bride had put the car on it after she left.