History HoistByHisOwnPetard / Fanfiction

** [[OriginalCharacter Henry]] [[TricksterMentor Hallmark]] regretted teaching Shirou all that nonsense [[{{Troll}} for shits and giggles]], since Shirou [[AchievementsInIgnorance turned so much of it into real power]]. One in particular is the idea that converting one's nerves to Magic Circuits is standard procedure. [[spoiler: Shirou broke the Grail War as noted above by virtue of having over 2000 functioning Magic Circuits, in a setting where 40 is prodigious.]]

** It seems likely that [[OriginalCharacter Henry]] [[TricksterMentor Hallmark]] is going to regret teaching Shirou all that nonsense [[{{Troll}} for shits and giggles]], since Shirou [[AchievementsInIgnorance turned so much of it into actual power]]. ''Especially'' giving him the idea that converting one's nerves to Magic Circuits is standard procedure (hint: Shirou broke the Grail War as noted above by virtue of [[BeyondTheImpossible having over 2000 functioning Magic Circuits]], in a setting where 40 is prodigious).

* In ''FanFic/NerveDamage'', after Shirou breaks the Heaven's Feel, Zouken forces Sakura to summon another servant besides Rider, even over her desperate desire not to fight Shirou. Cue her summoning an Assassin with just the powerset to kill him off [[KilledOffForReal for real]] while leaving Sakura alive. Who disdains the Grail and all who seek it as blasphemers, and sees Zouken as just the type of monster she was designed to fight.

* In [[FanFic/NewLookSeries Ben's New Look]] [[WesternAnimation/{{Ben 10}} Ben]] turns into Grey Matter to peep on some young women, but due to a combination of a rat in the vents and the Omnitrix timing out he gets caught and Gwen decides to punish him by dressing him as a girl.

* In [[FanFic/NewLookSeries Ben's New Look]] [[WesternAnimation/Ben10 Ben]] turns into Grey Matter to peep on some young women, but due to a combination of a rat in the vents and the Omnitrix timing out he gets caught and Gwen decides to punish him by dressing him as a girl.

* During the fiance arc of FanFic/AGrowingAffection, Hinata's grandfather Hyouta uses the Hyuga Clan's laws and traditions to try to break up Naruto and Hinata. When he thinks he has won, he says the wrong thing, and those same laws get turned on him. The result is Hyouta getting curb-stomped by Naruto, and then losing his power and status.

** Later, when Lung, [[spoiler: Daolon Wong's former apprentice, captures Jade and tries to bind her and thus her Shadowkhan to his will (which also counts as a CriticalResearchFailure, since Ikazuki's curse only allows her to summon Left and Right),]] his defenses are no match for her servants [[spoiler: and he is KilledOffForReal for torturing Jade and nearly killing her]]. No tears were shed.

** Later, when Lung, [[spoiler: Daolon Wong's former apprentice, captures Jade and tries to bind her and thus her Shadowkhan to his will (which also counts as a CriticalResearchFailure, since Ikazuki's curse only allows her to summon Left and Right),]] his defenses are no match for her servants [[spoiler: and he is KilledOffForReal for torturing Jade and nearly killing her]]. No tears were shed.

** Later, when Lung, [[spoiler: Daolon Wong's former apprentice, captures Jade and tries to bind her and thus her Shadowkhan to his will (which also counts as a CriticalResearchFailure, since Ikazuki's curse only allows her to summon Left and Right),]] his defenses are no match for her servants [[spoiler: and he is KilledOffForReal for torturing Jade and nearly killing her]]. No tears were shed.
* During the fiance arc of FanFic/AGrowingAffection, Hinata's grandfather Hyouta uses the Hyuga Clan's laws and traditions to try to break up Naruto and Hinata. When he thinks he has won, he says the wrong thing, and those same laws get turned on him. The result is Hyouta getting curb-stomped by Naruto, and then losing his power and status.

* ''FanFic/QueenOfAllOni'': Jade has [[EvilSorcerer Verde]] construct her an enchanted dog carrier to contain the Oni-masked Scruffy while speaking with the Bat-General; Tohru later uses this dog carrier to capture her (her minions save her, however). On top of that, Tohru reverse-engineers the magic involved to create sutra scrolls capable to restraining Oni.

* ''FanFic/TimeLordsAndTerror'': [[WickedWitch Hydia]], who spent the whole story trying to release [[EldritchAbomination the S'Muz]], ends up being its first victim. [[spoiler: Also, the S’Muz itself is defeated when the ponies use their Elements of Harmony to absorb both the PKE it stole and the PKE that makes up its body and disperse it into Equestria.]]

* Happens to a nameless griffon {{Mook}} in ''Fanfic/AceCombatTheEquestrianWar''. When he tries to bomb Stalliongrad, the pegasi manage to send it back at him, coupled with Derpy knocking the soldier toward the incoming bomb that went off.

* In ''FanFic/NerveDamage'', after Shirou breaks the Heaven's Feel, Zouken forces Sakura to summon another servant besides Rider, even over her desperate desire not to fight Shirou. Cue her summoning an Assassin with just the powerset to kill him off [[KilledOffForReal for real]] while leaving Sakura alive. Who disdains the Grail and all who seek it as blasphemers, and sees Zouken as just the type of monster she was designed to fight.

* ''FanFic/TheStarsWillAidTheirEscape'': [[spoiler: For all his GenreSavvy, [[BigBad Herald]] ends up being defeated by several of his own actions throughout the story. [[KickTheDog Throwing the jar containing the CMC's souls over the waterfall]] not only allows them to be retrieved, but takes away the one thing that might have stopped Pinkie Pie from banishing him to outside of reality the same way he did it to the Princesses. That action in and of itself ends up costing him, as it allows them to fight him at full strength without having to worry about hurting their subjects as they would in Equestria, allowing them to begin winning the fight. This also buys the Mane Six enough time to kill the [[{{Mooks}} Dark Young]] and stop [[SealedEvilInACan Shub-Niggurath's summoning]].]]

** [[spoiler: [[TheDragon The Grand Master]] -- Pinkie's [[ArchnemesisDad father]] -- injects her with [[PsychoSerum Heart's Desire extract]] in order to bring out her dark side, so she'll join him. Unfortunately for him, said dark side is ''FanFic/{{Cupcakes}}'' levels of crazy, and she ends up nearly killing him before he retreats.]]

* Around the climax of ''FanFic/MyLittleAvengers'', this happens twice. First, when it appears as though the villains have won, [[BastardUnderstudy Trixie]] attempts to betray [[BigBad Loki]], only for him to turn her own magic back on her. [[spoiler: She survives and escapes, but is left horribly scarred.]] Later, during Loki and Thor's FinalBattle, [[spoiler: Loki pulls a ISurrenderSuckers, but Thor anticipates it and redirects Loki's own Soul Seal spell back on him, killing him]].

* In ''WesternAnimation/AdventureTime'' fanfic, ''{{FanFic/Alex}}'', the titular antagonist provokes her opponent, Marceline, to spit at her coat, the same way she spitted at Princess Bubblegum's jacket at "What Was Missing". When she does it, the Witch uses a magic spell to put it at her gray top instead. Much after that, she has Finn and some wolves attacking her, the same way she did it to the former in "Go With Me".

* ''FanFic/TheFallOfTheFireEmpire'': [[spoiler: Azula is ultimately only defeated because one of her own [[UndyingLoyalty undyingly loyal]] Chosen is tricked into killing her.]]

* In ''FanFic/WinterWar'', the Barragan Fragment's power to age things to dust extends to its [[BloodyMurder blood]]. The fight is going badly when Isane guesses that it might be vulnerable to its own power. [[spoiler: At her suggestion, Ukitake and Soi Fong [[PoisonedWeapons put its blood on their swords]] before attacking again. Luckily for them, it works.]]

* One ''StarTrekTheNextGeneration'' Fan Fic involving Q creating a second Jean Luc seems to be written just to conclude with Data telling him "I'd say you were hoist by your own Picard."

* Around the climax of ''FanFic/MyLittleAvengers'', this happens twice. First, when it appears as though the villains have won, [[BastardUnderstudy Trixie]] attempts to betray [[BigBad Loki]], only for him to turn her own magic back on her. [[spoiler: She survives and escapes, but is left horribly scarred.]] Later, during Loki and Thor's FinalBattle, [[spoiler: Loki pulls a ISurrenderSuckers, but Thor anticipates it and redirects Loki's own Soul Seal spell back on him, killing him]].