Times where a plan Goes Horribly Right in Fan Works.
Crossovers
- Avenger Goddess: Chapter 23 reveals that Sekhmet only became the figure of violence she is now in an attempt to stop Ares by letting herself be consumed by Wrath in the belief that she could defeat him.
- The people in Weapon X who experimented on Logan died because they decided to give sharper claws to someone who was already lethal, then try and wipe his humanity completely. This resulted in the animalistic side of his brain taking the reins and butchering them before escaping.
- Balto: Future Shock: The intent of the Outsider was to be an unstoppable Super-Soldier. They succeeded. Too bad it realized it too.
- Boldores And Boomsticks: Whisper the Kirlia starts taunting and poking Sabra the Jangmo-o, in an attempt to provoke her into learning Outrage, since she's a Fairy-type so she's immune to Dragon attacks. Instead, Sabra gets so mad she evolves into a Hakamo-o and punches her in the face with a Sky Uppercut, something that can hurt Whisper.
- Captains Crash: Hiring a Captain Crash to pass on his skills at crashing safely? Sure, he succeeds, so injuries go down. But he also causes his students to start forgetting their skills at landing without crashing, so incidences of crashes go up. By 390%.
- In Christopher Weston Chandler & Magi-chan's Stone, Bob, sick of dealing with Chris, wishes the wizards would kidnap Chris (though he reconsiders after talking to one). They do take Chris away, but he ends up going to Hogwarts. Meaning he'll come back with Bob helpless to his antics.
- The Dark Lords of Nerima: After failing to kill the Sailor Senshi and subsequently fleeing, the youma Beneda falls in with Ryouga and Ranma in the hope that they'll kill her enemies for her. This leads to them defying all of her expectations by taking on Jadeite and winning, then eventually taking the fight to the Dark Kingdom itself.
- The whole "Dark Lords" plan come the sequel. The Senshi still think they are world-conquering villains and as such are quite prepared to use lethal force against them, especially the Outer Senshi.
- Dial: Titania attempts to use her love powers on Rath!Dial. This works. Unfortunately, Rath, as an Appoplexian, believes that the most traditional, romantic thing you can do to someone you love is to beat the tar out of them in a battle.
- Doctor Shikigami's Monster: Trope invoked by name when Mari sees the results of Michiru's experiment that she had accidentally tampered with.
- The Earth Bet Vermintide: Taylor's failures tend to cause more trouble for the heroes and innocent bystanders than her successes do. She even acknowledges this during a conversation with Glory Girl and Panacea, and later acknowledges her tendency to "fail upward".
- Fear the Superhero: Karasuba being winged by Shirou has aspects of this. They are two twisted and broken people who view murder as the answer to a lot of questions and they fit together perfectly. This hits Yume particularly hard when her beliefs in the power of love are confronted with this.
- Halloween Unspectacular: The first collection's Big Bad, ReGenesis, was the product of a government project to create a Physical God. The project was a success, but (partly thanks to his status as a Chew Toy pre-transformation) said god quickly turned out to be an Omnicidal Maniac.
- Hunters of Justice: While Jaune and Pyrrha got kicked out of the recruitment effort for being too nice, Jason nearly ended up joining the gang because his efforts were too convincing.
- Infinity Train: Blossoming Trail: Trip comes up with a plan to trick Chloe's bullies into admitting their misdeeds by having Parker ask them for help with his project proving how loved his sister is. This goes better than any of them could have imagined; Sara, Yeardley and the rest leap at the opportunity to brag about all the ways they tormented her, sneering about how much they loved seeing her suffer. This all culminating in Sara delivering a Breaking Speech claiming that Chloe deserved everything she got — and an utterly furious Parker going after the braggarts with his sister's softball bat, the bullies only safe from injury because Ash didn't want that to fall on Parker's conscience.
- Earlier, Trip decides to point out how Ash did nothing to understand Chloe outside of "just ask her to join him and Goh on Pokémon adventures and when she refuses, just leave her alone instead of actually getting to know her", which ends up giving Ash a massive Guilt Complex when he starts blaming himself for why she ran away. It's only when Trip learns how Chloe never brought up these problems on her end that he realizes how much at fault he is in making Ash starting to hate himself.
- Later on, Parker, influenced heavily by UnChloe to punish everyone that hurt Chloe or failed to stop her being hurt, creates an entity called Un Goh (or Zeno) to put Goh into a Nightmare Sequence where everyone calls him out on his treatment of them while obsessing on his search for Mew, showing how leaving everyone to eventually find Mew has left him alone and depressed. Zeno intended for Goh to learn and accept his mistakes, with the result of him trying to makes things right for Chloe and everyone. Instead, Goh has lost all self-worth and believes trying to be their friend again would just make things worse.
- Inheritance of Cards and Demons: Rin takes Naoko along with him to capture the Song card and uses the Illusion card to hide that he's a mage. Validating her beliefs got her more focused on him since he's proof of the supernatural.
- Joffrey from Game of Thrones Is Replaced with Octavian from Rome: Tywin wanted to have a King who continued his legacy and proved to be capable and intelligent. Octavian is that - to the point of doing stuff Tywin disagrees with and standing up to Tywin when he tries to force the issue.
- The Legend of Gobber the Belch: From Will's perspective: after he soothes the Boneknapper's anger and gives it back the missing bone piece, he finds he's now befriended the dragon. Gobber cites that it's better than the dragon still attacking him.
- In Mass Effect: Human Revolution, the Templars wanted to make Hannibal a killing machine to use against Adam. He did become a killing machine... against them.
- Metal Gear: Green: Madam President's attempts to create a PR nightmare to force Nezu to take action in defending UA ends with Nezu getting a contract with the MSF, much to her anger.
- In Neither a Bird nor a Plane, it's Deku!, Bakugou demands that Izuku train for the entrance exam because there's no way someone who spent ten years trying not to become a Hero is going to get in. Izuku ends up taking that advice and walks away with the highest score in the exam's history. Worse still, his actions as The Paragon also inspired everyone to start helping each other, which knocks Bakugou down to the bottom of the Top 10 rankings.
- The Night Unfurls: Hoo boy. The assassination attempt on the Good Hunter instead of the Goddess Reborn is an absolute success! Both in killing him (once, that is) and pissing him off. In response, the Good Hunter rewards the assassin handsomely for his Moment of Awesome.
- No Matter The World, It's Luz's World: Eda asking Luz for help ends up with the Conformatorium burning to the ground.
- Senran Persona: Ninjas of Hearts: During a sparring match between Joker, Mona, Skull, Panther and Serpent, the leader uses Brain Jack on the three to attack each other and gain an advantage. So he tells Panther and Serpent to have a pillow fight, while he tells Skull to punch himself. Not only does Skull punch himself in the groin, but Serpent goes to mercilessly beat Panther while laughing playfully. Skull (who recovered) had to use the Harisen Recovery and its outright stated that Panther was in severe pain. Joker tells himself that he'll never order a pillow fight ever again.
- Wait a Second, You're Dead?: The scientists that the Team rescues in the first mission after Danny joins were given ectoplasm without knowing what it actually was, and were told to try to find a way to use it to enhance attack dogs. Well, they did, only for the mutated dogs, and the other animal test subjects, to escape their control and attack them.
- In Zero Interface
, a trio of students learn of Ranma Saotome's phobia of cats and decide to antagonize him using wind magic to make it sound like he's surrounded by cats. This results in Ranma (and via their bond, Louise) activating Neko-ken and going on a rampage. - In the fanfic Zootopia: Lone Digger (a crossover between the film and music video for the song by Caravan Palace), a landlord is trying to close down the Lone Digger Club by arranging a brawl between patrons. Said brawl turns into the bloody slaughter depicted in the music video, which leads into Judy Hopps and Nick Wilde investigating the massacre.
- In this fan video, Gloria suddenly finds herself faced with a huge Zinogre that she escapes by distracting it with the fried chicken that she brought for lunch. Sometime later, the lupine Fanged Wyvern arrives at her door with a Kulu Ya-Ku in its jaws, wanting her to make more.
- I Always Loved Fireworks: Saito wanted to be able to feel emotions like everyone else when he was a kid. He finally got that... and it's at a point where he only wants to kill. Now that he understands empathy, he wonders why he ever wanted this in the first place.
- The Big Bad of Angel of the Bat revolves around this. Deacon Blackfire groomed Daniel Lebowitz to believe he was a messiah. The success created The Seraphim, whose ego was so great that he betrayed the deacon and stole all of his followers.
- In Batman 1939: Three's Company, chapter 4 establishes that Zatanna once did the Ethnic Magician routine by pretending to be a Hatian Voodoo priestess named Farah during a gig in the Mississippi... and was so convincing that she got arrested by the local sheriff as a "mulatto" (one-eighth African) who had broken several racial segregation laws.
- In C Listers, Killer Moth desperately desires to be taken seriously and stop being seen as a Harmless Villain. After Firefly cuts ties with him and Killer Moth goes on a self-destructive downward spiral that leaves most of the Gotham underworld actively gunning for him, he forces Kirk Langstrom to create a serum to turn him into a monster to make people respect him. It winds up turning him into a feral, cannibalistic beast that goes on a killing spree and is just barely stopped by Batman. When he's turned back to normal, he's horrified by what he's done while transformed, though he is somewhat happy that people are a little afraid of him now.
- “Injustice: One Bad Day” is an AU of the Injustice series where Batman is finally pushed so far after the execution of the remaining members of the Resistance and the discovery of a final weapon left by the Joker, whose final plan proves more effective than even the clown could have ever guessed. This weapon releases a gas that corrupts Batman into a variation of The Batman Who Laughs, the twisted Dark Knight subsequently corrupting Cheetah, Donna Troy and Kara Zor-El/Supergirl into the new equivalents of Catwoman and Harley Quinn before he turns on the Regime and tears them apart.
- The Price Of Revenge: After kidnapping Tim, Jason taunted him by assuring that Batman wouldn't waste time seeking for him and replace Robin as soon as possible. When Tim finally gains the opportunity to meet with Bruce, they are interrupted by Damian in full Robin costume. Even Jason was horrified to see his prediction apparently coming true.
- Jason also played with the possibility of converting Tim to his way of dealing with crime. Following the aforementioned event, Tim took the philosophy and ran with it to such an extreme Jason ultimately freaked and enlisted Batman's help.
- Not Quite As Planned: All Urahara wanted was for Ichigo to gain access to some of his Hollow powers. He did not expect Ichigo to completely embrace his inner Hollow and turn into an Arrancar.
- In He Can't See It, Marcie helps Xander by pretending to be his psychic powers. Unfortunately, due to how unstable she is, she goes too far and Xander nearly kills himself to protect Buffy and Willow from his out of control powers.
- Wishful Thinking: Makima's scheme in Chapter 7's time loop is to have the government execute the Gun Fiend to break Denji's trust in Public Safety. Denji joins the Chainsaw Man Church as a result.
- Cross Ange: Futatsu Sekai no Border: Teaching Sylvia to fight has backfired on her older sister big time, if the prologue events are any indication.
- In Danganronpa: Academy of Discontent, Fuyuhiko and Peko both try to take the First Blood Perk at the same time, allowing them to escape together without a trial. They succeed in killing their targets, but because Monokuma could use the security cameras to pinpoint which victim died first, he granted the perk to Fuyuhiko only, and had him removed from the academy and apart from Peko.
- In Tired & Emotional, Light adds a little brandy in L's ice cream in an attempt to loosen his tongue so he might learn his true name. Light gets L drunk, alright...
- Kingdom of Isolation: Snowman Hans notes that Elsa made him too well; he wants her dead even though he knows he'll die with her, too.
- That Guy Destroys Psionics: The narrator initially wanted to try another build, a Rogue based around the Use Magic Device skill, but the DM told him, paraphrased, "Minmax or GTFO". Elsimore, a wizard that destroyed a chunk of multiverse just to kill off the Big Bad, was the result.
- Poisoning Apple: Rotbart turned himself into an owl so Apple would help while he was defenseless without realizing Rotbart's helplessness. It works but then Apple tries to keep the owl she rescued!
- The Demon's Broken Heart: Based on events from Fairy Tail: 100 Years Quest, the moon dragon Selene attempts to break Natsu's spirit for her amusement by having her subordinate turn Lucy into a nuki-onna (a snake woman yokai) with an animalistic desire to kill Natsu. It did break Natsu's spirit, only for him to consumed by so much rage that he transforms into his Etherious form END, with the goal of destroying Selene in fiery vengeance.
- In the Fallout 3 mod Mothership Zeta Crew, the PC and company explore an underwater base of the aliens. However, there are no live aliens around. They were killed by Tyranids/Xenomorphs. Later, the PC finds out that The 'nids/'morphs were there because the aliens made them to attack the Olympus. Turns out, they were good at attacking. The aliens.
- In The Finest One, Waver tries to counter Lancer's Charm by adding a repulsion curse. Waver ends up overdoing it and makes Lancer look like a horrid figure to any of the female sex (though Lancer is initially relieved at not having women immediately fall for him thanks to the charm mark).
- In Champion, the Agarthans create a "machine god" to cleanse the surface of nonhumans, believing themselves to be the true humanity and regular humans to be pretenders. The machine god, Prometheus, doesn't see it that way, and readies itself to wipe out the Agarthans as well as the Nabateans.Myson: We have received exactly what we asked for. A god that will cleanse the surface of beasts. We were merely mistaken in assuming we were not beasts as well.
- Is it really okay to use Getter Rays in a world of Otome Games?: Leon sets up a tea party between Nick and Deidre in hopes of setting them up, but the latter's older sister Dorothea comes to crash it. Nick's attempt to stop their argument resulted in both sisters being interested in him.
- Abraxas (Hrodvitnon):
- In Chapter 4, Alan Jonah and his mercs conduct an experiment on the Two Beings, One Body Vivienne and San trying to provoke the imprisoned hybrid to anger — it works a little too well, leading to the hybrid not just killing at least three of Jonah's mercs but basically annihilating them.
- In Chapter 10, San reveals that in Ghidorah's Backstory, it was made into what it is to be a Bioweapon Beast for an advanced alien civilization, who invoked Being Tortured Makes You Evil on it before they set it on its targets. As soon as Ghidorah was let loose, it destroyed what its creators wanted it to, then it promptly turned against them and eradicated them in revenge.
- In Chapter 4
- A Bad Week at the Wizengamot: The fic opens with the Ministry of Magic trying Harry for using magic outside of school while underage as if he were an adult, even though Harry is still a couple years away from the age of majority by the very definition of his crime, so they can silence his claims that Voldemort has returned. Unfortunately for them, treating Harry as an adult in a Magical court of law means Harry is now legally and magically an adult, and he has both the financial resources to go elsewhere and negate his punishment and the shrewdness to ensure that the Ministry pays for what it's done. Within a week, the British Wizarding government becomes the laughingstock of the European Magical Union as Harry goes public on how he was treated, culminating in the Ministry shutting down for several days due to Harry and his godfather Sirius Black suspending their magic from an ancient treaty that allows the government to function at all.
- In Community Service, most Death Eaters escaped Azkaban after Voldemort's first fall by getting sentences to two years community service, and Voldemort, as in canon, has cursed the position of teacher of Defence Against the Dark Arts at Hogwarts to neutralize whoever held it before the first term ended. Then Dumbledore had the brilliant idea of having said Death Eaters spend their sentence as DADA teachers: the lucky ones are the two who merely lost their magic.
- In Daphne Greengrass and the Boy Who Lived, Daphne takes Divination mainly as a joke because she found that so many of her past casual comments turned out to be right, only to learn that she has genuine potential as a Seer and witness the events that will lead to Voldemort’s resurrection and Harry’s (apparent) death.
- Enter the Dragon: As in canon, Professor Lockhart asks Harry to act out the part of the Wagga Wagga werewolf — and as part of that, Harry offers to growl at him, which Lockhart is happy to approve. Unfortunately for him, he doesn't know that Harry's native form is an immense dragon, with the accompanying instincts, and even while using self-transfiguration to maintain a human appearance, Harry is still able to produce a threatening snarl beyond all expectations.The growl started out low, pitched below human hearing but intense enough for Gilderoy to feel each successive pressure front as it impacted his gut, each one a jarring reminder that there was something dangerous afoot, something predatory, something that a deep, atavistic part of him recognized and regarded with unabashed and unadulterated terror.
The successive impacts came faster and faster until they finally transitioned into the audible range as a basso-profundo rumble. The volume then kept rising, louder and louder until the desks rattled against the floor, not that Gilderoy knew that. His world was filled entirely with the sound of the growl and a vision of cold green eyes.
It was, far and away, the most intimidating sound the blond author had ever heard! For that matter, it was the most intimidating sound he had ever heard of, and he had talked with a lot of people who had faced a lot of very intimidating things.
...
The blond man looked around at the class, noting all the stunned expressions on the faces of children frozen in place by stark terror. As he turned to get a view of those behind him, he felt more than heard a faint squelch. The dandy frowned at the feeling before he realized it was accompanied by an unpleasantly moist warmth and it became clear what had happened. - Harry Potter and the Methods of Rationality:
- Dumbledore's pushing of Hermione towards trying harder to be a hero in her own right works, alright. It works so well that the entire next eight chapters are about just how much trouble she stirs up as a result. Long before the end he is fearing for her life should things escalate further. The very first thing she and her group do is organize a protest against him for the stuff he said in his Reverse Psychology gambit.
- Chapter 89: After Hermione dies, Quirrell finally approves of the strength of Harry's determination... and then Trelawney makes a prophecy about the end of the world. In the next chapter Quirrell is grimly trying to get Professor McGonagall to divert Harry from his resolution and spell research.
- A meta example; at the end of chapter 113 the author challenged the readers to figure out how Harry could get out of a seemingly hopeless situation by posting their suggestion as a review, and threatened to give them a bad ending if no one came up with a viable solution. There were so many entries sent in that within 40 hours the review section was longer than any of the canon books, and he had to appeal to the fans to try to help sort them out.
- The Meaning of One: Ginny's Bat-Bogey Hex works very well for her because it gets a lot of effect from a little bit of power, and she's magically very weak, nearly a squib. Until she bonds with Harry, whose magic is very powerful, and suddenly the results of her hex are much more violent.Madam Pomfrey: What did this to them? I must know if I am to treat them properly.
Mr. Weasley: Small objects grew rapidly into large, moving objects inside their noses. - The Rigel Black Chronicles:
- Harriett brews a Potentialis Potion that is meant to reveal a witch or wizard's magical gifts. However, it appears to have been more potent than intended, and actually gives — or at least unlocks — gifts that weren't there before. After seeing what happened to one of her friends, she's too scared to take it herself.
- Sixteen-year-old Tom Riddle created the Diary with the intent of ensuring he never became complacent, because the Diary-construct was a snapshot of his personality and would never change. Which means that when his older and more experienced self decides that maybe some of his decisions at age sixteen weren't the best, the construct doesn't want to hear it and strikes out on its own.
- The premise of Wish Carefully is that, instead of taking up the fight, Harry Potter surrendered Wizarding England to Voldemort and the Death Eaters, arranging for everyone else that was loyal to the Light to be evacuated. The Death Eaters now rule England without any opposition or Muggle-blooded taint... with all of the problems that would naturally come with what they wanted. Voldermort's England has no genetic diversity to prevent inbreeding defects, no working class, no skilled professionals, and an economic infrastructure that can't support them. On top of that, their leader is a murderous psychopath who starts making Dark Marks burn on people just to stave off his boredom. Lucius Malfoy notes in his journal that the Light's plan was deviously ingenious, because it let the Death Eaters destroy themselves while the Light doesn't have to do anything but sit back and watch.
- In AU fic What to Expect When You're On the Run, Vanessa uses The Baby Trap to get Michael to leave his university and be with her more permanently. She succeeds alright, and Michael stays with her to care for his daughter. Unfortunately, Vanessa becomes a Jealous Parent when she feels Michael is spending too much time with Harriet (said daughter).
- In Hackbent, Alleph desperately wants to be taken seriously when he 'commands' his friends and constantly fails. In an alternate timeline he finds out his god tier powers allow him to literally do that. It directly spirals out of control, ends in a massacre of his friends, with the only survivors being Morson and Cyrill.
- Queen of Shadows: Shendu tried to alter reality, but an accidental slash across the Book of Ages caused different changes than he wanted. It still worked out for him, but his siblings, probably not so much.
- Kirby's Dream Land 2: Fumu attempts to give a mob of villagers a Rousing Speech to unite them in protecting themselves against the mysterious creature in Whispy Woods' Forest. It works... then the now-united mob heads off to kill the creature.
- In Boys and Girls, Lincoln reminds Lori of Bobby to get her to stop fawning over Hugh. It works, but also makes her cry.
- Life of Pets: In "Home Worked", Lincoln, Lana, and Lola's ruse works a little too well when they're given a breather on their homework. Thinking that he'll still get rewarded for helping out, Charles munches on their homework only to get called out upon doing so out of nowhere, leading to their parents discovering what they did.
- Rescue to the Rescue: Peter taught Morgan how to be stealthy for hide-and-seek. What does she do with it? She sneaks aboard her mom's private jet all the way to Prague just to see him.
- Spider-Man: Finding Home: Two of the side stories involve an amusing incident at Dr. Connors' lab and it's aftermath at Kate’s apartment. Peter used some free lab time Dr. Connors gave him to whip up a "health drink," because Yelena and Kate had asked him to start drinking pineapple juice so his release will taste better. Peter, hating pineapple juice, formulated a flavorless alternative he hoped would work just as well. Explaining this to Kate, he sheepishly asks for her assistance evaluating the results of the experiment. Smash Cut to Yelena entering the apartment four hours later to find Peter limp on the couch, begging Yelena for help as Kate sucks a fifth climax out of him because he tastes too good.
- Couturiere: One of the reasons Lila kept harassing and framing Marinette for things she hadn't done was so she would be so stressed Hawkmoth would be able to akumatize her. She succeeds when Marinette is turned into the titular Akuma... who not only proceeds to prove her lies to their classmates, but then breaks her arm and leg, tortures her by hurting her and sews her mouth shut, something that traumatizes Lila so hard she becomes an Elective Mute.
- the high road: Deliberatedly invoked by Marinette; her classmates wanted her to get along with Lila, so she did that, and then some by dragging everybody else into making sure all of Lila's whims are catered to. This prompts them into taking everything Lila says with a grain of salt and finding holes in her claims, if only to escape being her servants.
- Queen Of Mean AU: Marinette's plan to completely destroy the Ladyblog almost worked perfectly, but it managed to maintain a few defenders because Marinette had also exposed Lila so totally that some people were willing to defend Alya on the grounds that she had just fallen into a notorious sociopath's web of lies and so hadn't really meant to do anything wrong.
- The Karma of Lies revolves around this: Adrien decided that Lila conning his classmates and slandering Marinette was no big deal because he wasn't personally affected, and resisted all efforts to expose her. His wish to keep her as a Karma Houdini is ultimately fulfilled; even when their warranties expire, Lila comes out smelling like a rose, thanks in no small part to his previous efforts to protect her. Even after she betrays and steals from him on her way out, his backtracking and claiming that he knew she was Evil All Along makes him look even more suspicious.
- LadyBugOut: Played for Laughs in Wish List. Master Fu requested that Marinette put together a list of potential candidates for new, permanent heroes. When they receive the list in question, Wayzz observes its length and that it might have been a mistake not to give her any limitations.
- Long Con: Marinette decides to follow Adrien's "take the high road" advice and fake being Lila's Professional Butt-Kisser, giving her everything she wants at the expense of the needs of the rest of the classroom. While the scheme does its desired work (Lila exposing herself as a Bitch in Sheep's Clothing), it's only after a very long while in which Marinette had to exhaust herself (and her money, and her friends') catering all of Lila's whims.
- In Marc Being In A Gang Rights, in the very first chapter, Marc's gang snatches Nathaniel and holds a knife to his face and threatens to harm him if he hurts Marc in anyway, hoping it would scare Nathan enough not to pull anything with Marc. What they weren't intending was for Nathaniel — who is being ganged up by a group of strangers in an alleyway, pinned to a wall with a knife in his face — to start wailing in terror and bursting out into tears.Male Gang-Member #1: Oh shit, are you crying? Yeah, I'm not dealing with that.
Marc's sister: Hey, uh, maybe don't cry?
Nathaniel: YOU WERE JUST THREATENING ME WITH KNIVES, WHAT DO YOU MEAN?
Male Gang-Member #2: Shit, Marc's gonna kill us if we made his boyfriend cry, abort, abort! - Miraculous Ladybug Salt-Shots: The stories where Marinette leaves her role as Class President/Representative, such as Bitter Victory and "Being A Good Example Isn't So Easy, Is It?", feature this blowing up in the face of the people who kicked her out. Bitter Victory has Marinette replaced by Lila and Lila not being able to handle the workload, while Good Example has Bustier growing overwhelmed since Marinette switched classes and Chloé refuses to do any of the work.
- The One to Make It Stay: Felix believes that Adrien needs to grow a spine and act out in the same way he does. He's blissfully unaware that Adrien has, in fact, found an outlet in being Chat Noir... and used that to be just as awful and entitled a little shit as his cousin.
- In The Wolves in the Woods, Lila got what she thought she wanted, ruining Marinette's social standing to the point she was forced to transfer out... only to realize that this left her surrounded by monsters she helped shape.
- In brilliant lights will cease to burn, Izuku calls the cops after busting an underground fighting and human trafficking ring to let them clean the place up. He did not expect them to send All Might, who then proceeded to cut off Izuku's only avenue of escape.
- Cain: Bakugo insists that All Might has to listen to him and train him. All Might does indeed do both things... which only help expose Bakugo's true nature much faster, ensuring All Might rejects him when Bakugo crosses the line.
- Erased Potential: After the League's assault on the USJ seriously damages U.A.'s reputation, Nedzu decides to deal with the concerned parents of his charges by hiring Midoriya Inko on as a liaison. However, while he intended for this to be more for show than anything else, he severely underestimated how seriously Inko would take the job — as it turns out, she's quite good at it, making clear that she will see improvements made in how U.A. treats its students, come hell or high water.
- Haigha:
- The League of Villains wanted to make somebody who possessed multiple Quirks, all tailored specifically towards hunting down and capturing victims. Technically, they succeeded. Unfortunately for them, said creation has turned against them and is working with the Pro Heroes.
- Played for Laughs with Aizawa, who wanted to make Izuku become more confident. When these efforts succeed, Izuku becomes a quipster who takes after Midnight, making flirty remarks and innuendos.
- Hero Class Civil Warfare: Izuku Midoriya was asked to lead a team of his fellow students as the villains in a simulated showdown. Izuku pulled off his absolute best effort at Awesomeness by Analysis and turning his Ragtag Bunch of Misfits in the best opposing force the war game had ever seen. And in doing so, he was such an Invincible Villain that he and his team spent the next couple of weeks alienated from the rest of the student body because they were scared shitless of them and it is heavily implied the League of Villains really want to recruit him into their ranks, come hell or high water…
- Overcharged: During the fight against the Hero Killer, Izuku uses his Quirk to absorb the nightmares that are nearly killing his friends and it works. Unfortunately it also has the side effect of also draining the life energy of anyone who is near him afterwards.
- Switchblade: The Japanese Government during the Meta Liberation War wanted to make Destro look like a Quirk Supremacist to discredit his equality movement. They succeeded, but actual Quirk Supremacists in Japan latching onto this false image of him ends up causing a civil war in modern times.
- Three Guys Go to a Bar(and then they Beat You With It) centers around Principal Nedzu and Aizawa assigning Bakugou, Tokoyami and Shinsou to play villains in a series of exercises against the rest of their classmates for their final exams that semester. They correctly figure that the three of them will take the exercise seriously, but severely underestimate just how angry the trio will be at being typecast due to their 'naturally villainous' Quirks. Spite proves to be a powerful motivator, indeed...
- The UA Girls: Mina had established the group chat just for the sake of finding out who Ochako was crushing on. As the girls figure out it's Izuku and they investigate him, they fall in love with him.
My Little Pony: Friendship Is Magic
- In the fanfic Duel Nature, Twilight Sparkle gets volunteered into a duel with Princess Luna. While it is supposed to be a friendly match, emotions quickly get out of control: in an effort to break Luna's concentration, Twilight resorts to psychological warfare, using her knowledge of the Princess to hurt her, culminating in a full-blown Break Them by Talking moment. This does disrupt her concentration, but turns a sparring match into a deathmatch instead.
- First Hoof Account: As part of her plan to deal with Blueblood, Sunset sets up a fencing contest and sabotages his equipment's safety feature so that it will look like he actually tried to hurt her. This works a little too well and lands her in the hospital for days as a result of a fencing foil stabbing into her chest.
- This is Played With in How To Kidnap A Princess where Rainbow Dash and Pinkie attempt to kidnap Twilight Sparkle in order to convince her that her castle's security is too light. It's played with in that Twilight gets wise to their plan and tricks Rainbow and Pinkie into kidnapping a clone from the Mirror Pool. The "horribly right" part comes into play when their little prank ends when Princess Celestia and Princess Luna, unaware that this is to test Twilight's security, come down on them personally for high treason and imprison them in Tartarus for kidnapping a Princess.
- The dragons of RainbowDoubleDash's Lunaverse are a Dying Race precisely because they have such impressive natural advantages. While most races must band together for trade and protection, a dragon's only need is for rocks to eat and they are so powerful that by far the biggest danger any dragon faces is another dragon. As a result of this, dragons have no society to speak of. They don't trust each other, and because they don't trust each other, they don't work together. Any dragon under threat by outside forces will only "improve" other dragons' positions, so they won't defend each other. Their whelps are essentially abandoned to fend for themselves, since no adult would take in a whelp for fear of that whelp stealing some of their hoard, let alone leaving themselves vulnerable. Only a handful of dragons can even read or write.
- Overlaps with Be Careful What You Wish For in Trixie Vs. Trixie repeatedly states her desire to learn how to fly using levitation. Then at one point, while messing around with a spell that magically turns her back into a filly, she gets the bright idea to test her levitation flight while she's a child, hoping that her lighter size would make it easier to lift herself off the ground. It not only works, but works out so well, she ends up on the moon!!! With no feasible way of getting back down.
My Next Life as a Villainess: All Routes Lead to Doom!
- In Through the Looking Glass (My Next Life as a Villainess), the Geord from Fortune Lover comes to the world of the series and breaks his engagement with that world's Katarina so he can be with Maria, only to learn that this world's Maria is in love with Katarina. Sirius takes advantage of this and uses his dark magic to enhance Geord's anger at both worlds' Katarina, with the expectation that he'll humiliate or even exile her. Instead, the rage consumes Geord so much he tries to kill Katarina, much to Sirius' horror.
- The Echo Remains, But The Song Is Not The Same: Iruka hopes that putting Shikamaru on Team Seven will ensure that Naruto has the support of at least one friend. And indeed, seeing firsthand just how much the villagers mistreat Naruto causes Shikamaru to swiftly blossom into a stubbornly outspoken defender... whose attempts at Shaming the Mob backfire, as the villagers simply get mad at him for defending the 'demon child'. And since the Sandaime refuses to break his silence regarding Naruto's status as the jinchuuriki, Shikamaru is left feeling like Adults Are Useless and that nobody else is willing to stand up and protect his friend, making him dig his heels in even further and causing the conflict to further esclate, straining his relationships with everyone. Including his own father.
- In Naruto Myoushuuno Fuuin, Sarutobi's efforts to hide Naruto's parentage are so successful that the boy believe he's the Son of a Whore and one of her clients. Kakashi and Jiraiya are both furious with Sarutobi when they learn this.
- People Lie: Naruto's and Hinata's attempt to always suppress their killing intent means Sasuke doesn't take very serious threats against his life seriously.
- In Thin Line Between Love and Hate, Sasuke, out of frustration and annoyance at his fangirls, gives each one a breaking speech to make them lose their admiration towards him and leave him alone (he also gives one to Hinata for her admiration towards Naruto). This not only breaks any infatuation towards him, but sows the seeds for intense hatred at him, enough that one all-kunoichi team (composed of Ino, Sakura, and Hinata) are plotting to destroy him.
- In Wind Lord, one of Naruto's enemies uses a jutsu to de-age Naruto until he's an infant. He goes too far and temporarily unleashes the Kyuubi.
- Artifact Abuse: Haruna makes syrup out of the sap from the World Tree. It immensely buffs her magic power, but she can't control it.
- This Bites!: During the Enies Lobby arc, Jabra slams Blueno into the roof before he could inform Spandam about how dangerous Luffy and the Straw Hats actually, which would lead Spandam to order CP9 to take him and the prisoners out of Enies Lobby, thus costing Jabra the chance to fight Luffy, only to see Luffy pissed off at the sight of someone hurting their comrade . Jabra thinks that he could mention that this rough housing is normal among CP9 and Blueno would be find, but wanting the best fight ever he deliberately triggers Luffy's Berserk Button by mocking how much of a pathetic weakling Blueno is. This is enough to make Luffy from as terrifying mad as his grandfather (who was enough to intimidate Rob Lucci into not disobeying orders ever again) to more furious as he brutally takes down Jabra.
- In Down the Tracks, (registered Archive users only), Sayaka and the other magical girls all want Homura to get a hobby after the resolving of the canon conflicts she had been focused on for so long, for which Homura more or less torpedoed her own personal interests to see completed amidst immense mental stress. So on a whim, based on her own side hobbies, Sayaka shows Homura some model train videos to see if it would get Homura's interest to do something for fun again. It did...and Homura promptly got so utterly fixated on model trains that she might have forgotten to eat for the majority of an entire week, self-isolated to enjoy her new interest even worse than she had before , and might have stolen some model trains to indulge in her new hobby.
- In Chapter 55 of In The Dark, Geri is able to get Melanie to see a hypnotist in hopes of getting any of her memories. Since there is a court official, it would help ensure that Otis Darwin pays for what he did to Melanie. Cue the Mass "Oh, Crap!" once Melanie realizes what she had revealed.
- Ambition of the Red Princess: When Malty purchases some clothes from the blacksmith in order to disguise herself, the disguise works so well that, whenever she tries to reveal her identity, it takes a few moments for the person she's conversing with to recognize her. She's both annoyed and pleased by this: on one hand, it forces her to make the annoying habit of going over-the-top in order to confirm her identity; on the other hand, it means that the blacksmith did a good job making her clothes, so at least she's getting her money's worth.
The Scum Villain's Self-Saving System: Ren Zha Fanpai Zijiu Xitong
- Yue Qingyuan from Salvage The Remnants pretended he didn't care a whit about Shen Qingqiu in order to protect him from enemies bent on attacking the Emperor by hurting his beloved. His indifferent facade is so convincing that Shen Qingqiu loses any trust in his love and now believes Yue Qingyuan merely tolerates him out of obligation.
- Rosario Vampire: Brightest Darkness:
- In Act I chapter 12, Apoch and Astreal brainwash Rason and Dark for aid, only for their master to exploit this and use all four of them as his mindless slaves.
- In Act I chapter 23, Yukari, hoping to help Tsukune and Moka's relationship, creates a special Love Potion that literally makes someone dosed with it crazy with love; as Yukari puts it, "you may not want to be in public then." However, Yukari never anticipated that Moka would share the potion with Kurumu and Mizore during school hours, rather than use it for herself when she and Tsukune are alone.
- Talon Ryashen's Backstory. He was kidnapped off the street by Fairy Tale and turned into a Super-Soldier. The minute the experiments were complete, he escaped the lab and now seeks to wipe out anyone and everyone who ever worked for Fairy Tale as revenge for the loss of his humanity.
- In Professor Arc this trope makes up the basis of the plot. Just like in the base material, Jaune manages to fake his transcripts and get into Beacon... except here it works so well, that it lands him a job as a teacher. You can probably figure out what comes out of it. Later on, his ruse becomes so successful, that when the only way to defeat Cinder's plan is to confess, he is completely disbelieved by General Ironwood, who sees Jaune as a dangerous mastermind.
- A Rabbit Among Wolves: Jaune manages to succeed well enough in his first mission, that Sienna Kahn expects him to expand his work and recruitment, rather than just lay low like he wanted until he could convince the public he wasn't evil. Being in a terrorist organization, he knows what would happen if he refuses her orders.
- Red Sun Over Beacon: Unwilling to kill the assassin Tacet Avalanche in cold blood in front of Ruby, Adam manipulates Tacet so he can kill him in self defense. Ruby intervenes, killing Tacet herself.
- Sailor Negamoon has Rubeus and Sapphire brainwashing the Sailor Scouts to be evil. They prove to be just as good at being evil as they are at being good, resulting in a Bad Future, with the two having to subsequently Set Right What Once Went Wrong.
- The Secret Return of Alex Mack: GC-161 was originally meant to be a diet drug, and it does supercharge your metabolism — but all that energy isn't just burned for nothing, it gets turned into random powers like electricity generation and telekinesis and pyrokinesis, often with no precise control, no off switch, and significant psychological alterations. But you'll lose weight!
She-Ra and the Princesses of Power
- In the fanfic Cat-Ra, Shadow Weaver manipulated Adora with the intent of making her more cruel and ruthless. Adora realizes what kind of person Shadow Weaver is and betrays her to Hordak without a second thought while giving her a brutal Breaking Speech.Shadow Weaver: I've created a monster.
Adora: No, you've created your replacement.- Orbko was designed to learn from and adapt to any obstacle that interfered with its mission, and the results far surpassed Entrapta's expectations. Unfortunately, when its priority to defend itself and its orders not to harm Frosta come into conflict, it decides that its own programming is an obstacle and overwrites it to reclassify Frosta as an enemy.
- The Raven's Plan opens with the last survivors of Westeros holding a Last Stand against the Night King's forces while Bran and Melisandre conduct a ritual to send them all back in time so they can change things. This spell is powered by blood, and no one took into account all the blood the defenders would be spilling, leading to the ritual being supercharged. So, yes, it does succeed in sending all its targeted people back, it's just that a lot of other people also get sent back, throwing the plan Off the Rails.
- In The Falcon Has Flown, Andrew Tollett and Shadrich the Mad Mouse set out to capture Tywin Lannister in hopes of a massive ransom that will set them up comfortably for life, but the prideful Tywin refuses to surrender to a hedge knight and Shadrich accidentally kills him in the ensuing duel, leaving him with no ransom and a target on his back.
- erutcarF: The entire catalyst for the fic happening is Shadow and Silver intervening when Sonic shatters the Paradox Prism and attempting to put it back together, which they succeed at with a combination of Silver's psychokinesis and Shadow's Chaos Control. Unfortunately, due to how unstable everything was when the Prism first exploded plus the massive excess of raw energy, Shadow rewinding the time of the Paradox Prism ended up reversing a previous shattering of the Prism that resulted in the multiple different continuities of the Sonic multiverse, causing all the fragments of that shattering to come back together. Because these fragmented crystals had grown out on their own and stabilized into new dimensions, the result is a massive jagged new Paradox Prism and rather than a properly Merged Reality, the dimensions are fighting and glitching out to try and force out a "dominant" one. And that's to say nothing of how the inhabitants of the fused reality are having to deal with temporal glitching that threatens to erase them out of reality if they can't ground their existence, as well as the various different versions of certain characters now merged into a single entity that keeps switching randomly between their various continuity selves.
- Thirty years prior to the events of Sonic X: Dark Chaos, Luke the Seedrian — the future Dark Oak — roboticized a young fox named Tsali into the "Ultimate Weapon" that could save his homeworld from a Demon invasion. Tsali quickly freed himself, promptly turned against his creators, and exterminated the entire Seedrian race in revenge.
- M4K30V3R, Rouge's "automatic beautifying system" from Sonic's New Look (and multiple similar stories). Intended to make sure Rouge always looks her best, it does its job flawlessly. So when it finds Sonic in her room...
- Black And Gold: L.J.'s mother wanted her to be more responsible and capable, even abandoning her to ensure this happened before Rachel killed her. L.J. develops, becoming strong enough to stand up to her mom (which is basically like a Greek demigod standing up to their parent, something that takes serious balls).
- Doctor Ghemor, I Presume? has the Obsidian Order abducting Dr Julian Bashir and gaslighting him into believing he's one of their agents to launch a sting operation on said disappeared agent's father. Courtesy of Julian's rather delicate relation with reality and craving for genuine caring bonds, he eagerly embraces Legate Ghemor as his father. Entek is left a bit flummoxed by this development.
- Landscape with a Blur of Conquerors: Leia hoped that Rey would influence Ben. She did not expect them to fall so madly in love with each other that it would add a whole new layer of complexity to the situation.
- Roger, Roger: Palpatine did want an attack on Kamino, but he did it to trick the Republic into funneling more money into military matters and to unify them against the Seperatists. What he really wanted was for everyone to think that the Separatists were making a determined push, but in reality there would be superficial damage to the actual facilities. Thanks to 711, the damage to Kamino was far more extensive than he planned, doing severe damage to the war effort of the Republic. Oh, and what's more, it reveals Anakin's relationship to Padme to the galaxy, so not only is he dealing with an unexpectedly hypercompetant droid commander, but he's just lost one of his big sources of leverage over Anakin. And because the Droid General is loyal to Ventress, not him, he can’t even count on it as an asset.
- In Wilhuff Tarkin, Hero of the Rebellion, the Emperor has Vader assassinate Tarkin's son and frame an early Rebel group to make him more ruthless and loyal to the Empire. It works... but Tarkin instead turns said ruthlessness on him and Vader.
- In Sword Art Online Abridged, Rosalia subjects Kirito to a Breaking Speech intended to reduce him to a gibbering wreck before she and her Titan's Hand goons mug him. However, this doesn't change the fact that Kirito is still thirty levels higher than them, so they can't even harm him even when he's not bothering to dodge their attacks. All Rosalia succeeds in doing is turning a Jerkass into a Laughing Mad killing machine, then slamming several of his Berserk Buttons, which turns out to be a fatal mistake.
Teenage Mutant Ninja Turtles (2012)
- In Truth, Donatello accidentally invents a truth serum, which he and Mikey decide to use as a prank against their older brothers. Unfortunately, it turns out Leonardo and Raphael have been keeping a pretty big secret...one that gets both of them in huge trouble with Master Splinter.
- Mikaela's Body: The cult who wanted to sacrifice Michael succeeded in getting him possessed... but they didn't expect to become his first victims.
- In The Panda Chronicles chapter "The Toaster's Toast", while the guys are making Jesse think Tae-young is sick, Aaron Z. exploits Hot Drink Cure to create a false reading on a thermometer. This false reading worries Jesse, and he tells the guys that they may have to bring Tae to the hospital if his temperature doesn't come down. The boys all then go against their plan and make it seem like Tae is getting better very fast.
- In "Secrets Revealed", Alex's determination to find out the secrets of those closest to her as part of a school project leads to her casting a truth spell on Harper to learn the identity of Harper's new crush... only to be shocked to learn that Harper has actually always been in love with Alex herself.
- A Darker Path: Emma has been bullying Taylor for a year and a half because she wanted to bring a reaction out of her. After the locker "prank", she finally gets one - Taylor Triggers and proceeds to kill Sophia, terrify Emma and Madison and start a career as Atropos, who proceeds to unleash her power to End anything on Brockton Bay's villains.
- It Gets Worse: Uber successfully persuades L33t that it's not feasible to claim Shatterbird's bounty unless they can kill off all of the Slaughterhouse Nine, then realizes that L33t is already suited up and didn't actually want to win that argument.
- Just A Phase: After Emma Triggered, she brutally bullied Taylor with the vague expectation that Taylor would eventually "prove her strength" and fight back, so they could become friends again. Then Taylor Triggers... and fights back by revealing that Emma and Sophia almost killed her (tanking her reputation and causing her family and the other Wards to regard her with derision) and then blocking Emma's attempts to apologize and atone, because after all the shit Emma did Taylor can only see her actions as yet another attempt to psychologically torture her.
- Mauling Snarks: After Skidmark indirectly almost kills a Ward, which pisses off every hero around and forces him to go on the run, he figures that he might as well join the Slaughterhouse Nine. He finally tracks them down and gets their attention, only to find out to his horror that the Ward he tried to kill is their leader's niece. The Nine, who are all already in a very bad mood, calmly and politely explain to him what they think about people who try to hurt their loved ones. After they're done with him, Skidmark is even still alive. Well, a few pieces of him are.
- In this short, well - for context, Worm is a world where all superpowers are by definition a Traumatic Superpower Awakening - and Emma spent a year and a half tormenting Taylor by being a Barbaric Bully. Emma realizes - after Taylor triggers - that Taylor now has superpowers and a lot of good reasons to be mad at her, and that this was the logical outcome of what she was doing - so well, it might have been a bad idea. Whoops.
- Yu-Gi-Oh! The Abridged Series: Episode 71 has the most straightforward example.Raphael: Now do you see how right I was about you being evil?
Pharaoh: Yes Raphael. I see exactly what you mean. And now that I know how evil I can be, I'm going to destroy you and everything you hold dear, and bathe in the afterglow of your demise. (evil laughter)
Raphael: (visibly intimidated) Well- Well good, I'm- I'm glad this worked out. Yay. - Parodied in Yu-Gi-Oh! GX: The Abridged Series, where some students tried to summon Jinzo... and they did!
