History HoistByHisOwnPetard / WebOriginal

** The Spin-off, Death Race, has two linked ones happen in quick succession in the final episode: [[spoiler:[[FranchiseSuperMarioBros Mario]] offs himself by accident with a Bob-omb]], which in turn [[spoiler:causes [[Franchise/SonicTheHedgehog Sonic]] to inadvertently off himself with his own Blue Shell, as it locked onto him when Mario died]]. Notably, these two are the ONLY Death Race combatants to, accidentally or otherwise, kill themselves during a race (Optimus Prime killed himself at the end of episode 2, but that was AFTER he had won the race).

* Tom Scott's story, ''[[https://www.youtube.com/watch?v=y4GB_NDU43Q Single Point of Failure]]'', is set off when one of Google's five trusted users sabotages their password code to, effectively, let anyone into any Google account without a password. Most of the story focuses on the devastating effects this has, but [[spoiler:at the end, almost as an afterthought, he mentions that she ended up arrested when her getaway flight was delayed -- because the airport ran on Google Apps]].

** The Spin-off, Death Race, has two linked ones happen in quick succession in the final episode: [[spoiler: [[FranchiseSuperMarioBros Mario]] offs himself by accident with a Bob-omb]], which in turn [[spoiler:causes [[Franchise/SonicTheHedgehog Sonic]] to inadvertently off himself with his own Blue Shell, as it locked onto him when Mario died.]] Notably, these two are the ONLY Death Race combatants to, accidentally or otherwise, kill themselves during a race (Optimus Prime killed himself at the end of episode 2, but that was AFTER he had won the race).
* In ''Literature/FearLoathingAndGumboOnTheCampaignTrailSeventyTwo'', this happens to [[spoiler:[[AxeCrazy President Rumsfield]] when he is accused of being mentally unfit, having a "nervous breakdown", during his impeachment proceedings and is dragged away to one of the same mental hospitals that he himself locked many of his political opponents in.]]
* WebVideo/GameGrumps: Jon insists when playing the first Donkey Kong Country that he isn't going to go after secrets for a few reasons. The playthrough of DKC2 ends with a shitload of tension because Jon neglected to hunt for lives, forcing them to scrape for 1-Ups at the last minute.

* Dslyecxi, the founder of the gaming clan Creator/ShackTactical, has occasionally run into this. For example, in the first minute of his ''VideoGame/{{ARMA}}'' video ''[[https://www.youtube.com/watch?v=Xwu5Av3iyuc Hip Shooting]]'', Dslyecxi shoots down an enemy helicopter by SnipingTheCockpit... only to realize in horror seconds later that it's going to crash right next to him, which will possibly kill him and nearby friendly units too. Months later in another video after a string of similar incidents, he would joke that he made a DealWithTheDevil that allows him to do things like shoot down helicopters with unguided missiles... but only if the helicopters then land on friendly units.

** [[spoiler:[[BigBad Jack Slash]]]] suffers a FateWorseThanDeath at the hands of [[spoiler:Gray Boy]], who he [[spoiler:had cloned in the first place to replace the original.]] In addition, Golem, the hero that orchestrated these events, is in fact [[spoiler:Theo Anders, who Jack had challenged to kill him two years previously.]]
* ''Podcast/TheAdventureZoneBalance''
** Taako possesses a weapon called the Umbra Staff, a wand disguised as an umbrella which eats the magical essence of a defeated enemy spellcaster. This usually just involves the staff eating the target's wand. [[spoiler: Lup, Taako's sister and the creator of the staff, is a lich, a creature formed when a magic user fuses their soul with their magical essence, leaving them immortal beings made of raw arcane energy. But since the staff eats arcane energy, when she's killed with it in her posession, it devours her lich-form and traps her inside.]]
** A meta-example occurs when Griffin decides to add the [[InfinityPlusOneSword Flaming Raging Poisoning Sword of Doom]] to the game as a shout-out to an eight year-old fan, but ensures the party would never be able to obtain it by pricing it at a whopping 60.000 gold pieces. He severely underestimated [[GuileHero Taako]], however, who manages to con Garfield into giving it to them for a fraction of the price. It's used liberally in the final battle, and is a GameBreaker unlike any other.
* ''WebAnimation/DSBTInsaniT'': If anyone gets a hold of Stephanie's mic, they can use her brainwashing music to their advantage.
* Tom Scott's story, "[[https://www.youtube.com/watch?v=y4GB_NDU43Q Single Point of Failure]]", is set off when one of Google's five trusted users sabotages their password code to, effectively, let anyone into any Google account without a password. Most of the story focuses on the devastating effects this has, but [[spoiler:at the end, almost as an afterthought, he mentions that she ended up arrested when her getaway flight was delayed -- because the airport ran on Google Apps.]]
* PlayedForLaughs in ''WebAnimation/IfTheEmperorHadATextToSpeechDevice'' where [[TabletopGame/Warhammer40000 The Emperor of Mankind]] challenges his right-hand man Little Kitten to a [[TabletopGame/YuGiOh children's card game]] and forces him to win lest he and his fellow [[PraetorianGuard Custodes]] be banished... to Ultramar. The Emperor gives Little Kitten a deck based on his personality and typecasting (read: a deck of weak, cutesy monsters) so The Emperor's own powerful deck would beat Little Kitten in with a deck out if he survived a single turn with his powerful monster. It just so happens that Little Kitten's deck is the "Weenie Beasts" deck, a deck that uses the effects of weak monsters and cards to make them extremely strong and clears out the opponent's field for a one-turn-kill... the same thing the Emperor attempted. Once again, The Emperor's arrogance has caused trouble for him.
* PlayedForLaughs during Jace's appointment with [[WebVideo/TolarianCommunityCollege The Professor]], wherein he attempts to wipe Prof's short-term memory. It backfires, and he erases his own memory. TWICE.
* ''Blog/HowToHero'' features a villain from the 60s named Lady Richter who could create earthquakes. Some historical reports claim that she met her demise when one of her earthquakes destroyed her hideout while she was still inside it.
* ''Podcast/FatFrenchAndFabulous'' describes the fate of [[SnakeOilSalesman William J. A Bailey]], a Harvard dropout who claimed to be a doctor and got rich selling quack radiation therapies, including the radioendocrinator, a dangerous radiation source worn directly against the body (specifically the abdomen or the scrotum) and supposedly treated the endocrine system. Bailey himself was a passionate user of the radioendocrinator and eventually died of bladder cancer.
* ''LetsPlay/{{Dream}}:'' At the end of the first Death Swap, George goes to the Nether, intending to jump into a lava lake at the last second before the next swap and leave Dream to burn. Dream, however, has an enchanted golden apple, which he uses to survive the lava. He then spends five minutes sitting in the lava, intending to just have George die in the very lava he tried to kill Dream with. [[LampshadeHanging Dream even lampshades it]].
-->'''Dream''': I'm just gonna throw you back into your own lava!
* In the ''WebAnimation/DingoDoodles'' "Fool's Gold" campaign the ancient Foreclaimer empire created legions of soul-powered mechanical constructs to serve as an army and Xanu, an artificial god meant to be a Perfect Being. For years they experimented on Xanu to ensure he was truly perfect until he decided to wipe out the entire race. Using his mastery over souls, Xanu simultaneously took control of the constructs located in every Foreclaimer settlement and would have exterminated them in a single night if the survivors hadn't fled through a portal.
* WebVideo/{{Kitboga}} is a scambaiter popular on Website/{{Twitch}} and Website/YouTube. One of the standard tactics of refund scammers is to claim that they will lose their job unless the target gives them back the excess money that they refunded, typically via gift cards. So, in [[https://www.youtube.com/watch?v=PZqWrHDYK1M this video]], Kitboga claims that he is Kelly from a company's Human Resources department. Then, when the scammer asks "Kelly" to go get gift cards, she tells him that if he wants her to do this, then he needs to do her job, which involves calling up various employees and getting their responses to a survey regarding their job satisfaction. Although he does some of this, when he fails to fill out and submit the form properly over multiple calls, she tells him that she has lost her job. At this point, he calls a number which he thinks goes to Kelly's boss, but which is actually Kitboga himself using his own voice, admitting that he's a scammer and telling the boss that he was the one doing the surveys and that he was taking advantage of Kelly and not to fire her. He then calls "Kelly" back and tells her that he's saved her job, only to say that he was lying to the boss about being a scammer and he still needs gift cards from her. Kitboga, unamused, eventually tells him as Kelly that not only has she lost her job, but now she's in legal trouble for giving a criminal company information and access to a company computer system.
* ''[[WebAnimation/Supermarioglitchy4sSuperMario64Bloopers SMG4]]'': Francis, the main antagonist of the Anime Arc, ends up getting killed by one of his own machines, called the Ink Zuccer, which he used to forcefully extract ink from inklings in order to fuel Inkweaver. Plus, even if that didn’t kill him, one of the beings he created from Inkweaver self-destructing certainly would have.

* Season 6 of ''Machinima/ArbyNTheChief'' introduces the character, Justin. Revealed to be the mastermind behind the console banning hacks that Arbiter, Master Chief, Chaos Theosis and [[GreaterScopeVillain Trent Donnovich]] have been using in seasons 5 and 6. When Justin presents Trent with network crippling software, guess who Arbiter takes out first?

* The space pirates in ''Machinima/RedVsBlue'' use an alien structure as a tractor beam to crash ships and strip them for parts. Later on the Reds and Blue's send their trainees to take control of it and crash the pirates' own captured ship.

* ''[[Machinima/Supermarioglitchy4sSuperMario64Bloopers SMG4]]'': Francis, the main antagonist of the Anime Arc, ends up getting killed by one of his own machines, called the Ink Zuccer, which he used to forcefully extract ink from inklings in order to fuel Inkweaver. Plus, even if that didn’t kill him, one of the beings he created from Inkweaver self-destructing certainly would have.

* ''WebVideo/KickAssia'' has Benzaie try to use Beary as a grenade launcher, but spends too much time saying farewell, that the grenades explodes in his face.

* In ''Literature/{{Reds}}'':

** Adam's character short reveals Ghira was extremely critical of Adam's violent, lethal actions against antagonistic humans. Sienna defends him and supports the Faunus interpreting him as a hero. She takes him on missions, grooms his rise through the ranks, gives him command of the Vale branch, and hopes to see him one stand beside her throne. He instead pursues his own agenda, pushes White Fang violence beyond Sienna's tolerance levels, murdering and replacing her when she confronts him in Volume 5.

* ''WebAnimation/{{RWBY}}'': When Neon and Flynt fight Yang and Weiss during the tournament, they are defeated by having their abilities turned against them. Yang crushes the barrel of his [[InstrumentOfMurder weaponised trumpet]] causing the powerful soundwave to blast back in his face. Neon spends the entire fight taunting Yang to make her angry, but Yang's power-up is connected to her temper; when Yang explodes, she destroys the arena. Neon's speed depends on her [[AwesomeButImpractical rainbow-spewing rollerblades]], so the ruined terrain trips up her wheels, making her an easy target.

* In the ''Roleplay/MSFHighForum'', [[EveryoneCallsHimBarkeep The Manager]] Has made the mistake of checking to see if the snake he just nearly fed two [=PCs=] to is okay. Good news! The snake is okay. Bad news! It's in a bad mood.
* In ''Webcomic/MSFHigh'' proper, for the first female-to-male TG in the comic.

* ''WebAnimation/DarkMatter2525'' has [[https://www.youtube.com/watch?v=ODetOE6cbbc this]] [=YouTube=] video where Jeffrey, God's assistant, asks him to stop teasing the atheists before he sentences them to hell, just because they didn't believe in him. God mocks this, by saying "they should have known" that an intelligent being such as themselves, had to have a creator. Jeffrey asks God who created him. He denies He has a creator. Jeffrey asks God if He is intelligent, and when He admits it, Jeffrey points out God is making the logical fallacy of "[[SpecialPleading Special pleading]]," and [[{{Hypocrite}} hypocrisy]], condemning those who did not believe the very thing he doesn't, either. This starts an argument so upsetting, that both kill each other. HilarityEnsues when they appear before God's God to have God answer for His sins, including not believing in His creator!

* ''WebAnimation/MetaRunner'': Lucks had spent nearly two years [[spoiler: covering up the fate of Lucinia, even willing to threaten and lie to the media and even his own Meta Runners just to keep it secret. Not only do his misdeeds eventually get exposed, but he ends up getting killed when Dr. Sheridan, the man who Lucks allowed to run his dangerous experiments unchecked and start this whole dilemma in the first place, takes control of Masa’s Meta Runner arm and shoot him point blank in the head. And for extra irony, Sheridan uses the exact same gun Lucks did to shoot off Masa’s original arm.]]

* ''WebAnimation/MetaRunner'': Lucks had spent nearly two years [[spoiler: covering up the fate of Lucinia, even willing to threaten and lie to the media and even his own Meta Runners just to keep it secret. Not only do his misdeeds eventually get exposed, but he ends up getting killed when Dr. Sheridan, the man who Lucks allowed to run his dangerous experiments unchecked and start this whole dilemma in the first place, to take control of Masa’s Meta Runner arm and shoot him point blank in the head. And for extra irony, Sheridan uses the exact same gun Lucks did to shoot off Masa’s original arm.]]

* The space pirates in ''Machinima/RedVsBlue'' use an alien structure as a tractor beam to crash ships and strip them for parts. Later on the Reds and Blue's send their trainees to take control of it and crash the pirates own ship.

* In ''WebAnimation/DeathBattle'', [[spoiler: [[VideoGame/DigDug Taizo Hori]]]] kills [[spoiler: [[{{VideoGame/Bomberman}} White Bomberman]]]] with his own bomb.

** While it did take some set up, [[spoiler: [[Franchise/{{Kirby}} King Dedede]]]] kills [[spoiler:[[Franchise/SuperMarioBros Wario]]]] via [[spoiler: Wario's own Waft by pluggin up his butt with a Gordo.]]

* In ''Literature/{{Worm}}'', [[spoiler:[[BigBad Jack Slash]]]] suffers a FateWorseThanDeath at the hands of [[spoiler:Gray Boy]], who he [[spoiler:had cloned in the first place to replace the original.]] In addition, Golem, the hero that orchestrated these events, is in fact [[spoiler:Theo Anders, who Jack had challenged to kill him two years previously.]]

* ''WebAnimation/{{RWBY}}'':
** When Neon and Flynt fight Yang and Weiss during the tournament, they are defeated by having their abilities turned against them. Yang crushes the barrel of his [[InstrumentOfMurder weaponised trumpet]] causing the powerful soundwave to blast back in his face. Neon spends the entire fight taunting Yang to make her angry, but Yang's power-up is connected to her temper; when Yang explodes, she destroys the arena. Neon's speed depends on her [[AwesomeButImpractical rainbow-spewing rollerblades]], so the ruined terrain trips up her wheels, making her an easy target.
** During Adam's character short, Ghira was extremely critical of Adam's violent, lethal actions against humans that were attacking their convoy. Sienna defended Adam against him and supported the Faunus who were cheering Adam's actions by emphasising that he's a hero. From that time on, she took him on missions and groomed him to rise through the ranks. She gave him command of the Vale branch of the White Fang and expressed the hope that he'd one day stand beside her throne. Instead, he pursued his own agenda and pushed the White Fang far beyond the level of violence Sienna was willing to tolerate. When she confronted him about it, he murdered her and took her throne for himself.
** In Volume 7, when [[spoiler:The Ace Ops]] attempt to take down Team RWBY in one of the most beloved fights in the series, the former gets this treatment, when Team RWBY is able to use their own Semblances against them. For [[spoiler:Vine]], Blake projects a shadow clone of herself over some of Yang’s bombs, tricking him into pulling said bombs right up to his face, and blowing himself into the air for Yang to finish off. With [[spoiler:Marrow]], Weiss summons her Arma Gigas summon to give him two different targets to focus on, knowing full well that his Semblance can only target one target at a time. When he does use it on Weiss, the Arma Gigas comes at him from behind, forcing him to switch targets again, allowing Weiss to finish him off due to him being so low on Aura thanks to the excessive use of his Semblance. As for [[spoiler:Elm]], Yang uses her explosive abilities to shatter the ground, making sure that [[spoiler:Elm]] has no stable ground to use her Semblance on, rendering it useless. Yang then uses her own Semblance to blast [[spoiler:Elm]] into the air, where Yang and Blake deal the final blow. Finally, with [[spoiler:Harriet]], Ruby baits her into using her speed Semblance to charge at Ruby, only for Weiss to generate an ice wall between the two, knocking [[spoiler:Harriet]] out cold.
*** However, they truly defeated themselves by letting their animosity get ahead of common sense, which resulted in [[spoiler:Elm]] releasing Blake, who she had captured, in order to chase Yang for taunting her, and in [[spoiler:Harriet]] electing to chase down Ruby, who had also taunted her, instead of helping [[spoiler:Marrow]] defeat Weiss. Also, without their leader [[spoiler:Clover]] in the room to keep them in line, they began bickering with each other, split themselves up, and were very unsynchronized, allowing the much more United Team RWBY to pick them off one by one with relative ease.
** Speaking of [[spoiler:Clover]], he ends up doing this to himself by focusing on taking out his former ally [[spoiler:Qrow]] instead of the villainous serial killer Tyrian Callows, when his superiors order for the arrest of the former. This could be due to a variety of reasons, from his absolute trust in his superiors to his overconfidence that he can take out Tyrian easily after having defeated him earlier. Either way, it allows Tyrian to convince [[spoiler:Qrow]] into pulling an Enemy Mine with him against [[spoiler:Clover]], a deadly confrontation that ends in [[spoiler:Clover losing his life to a literal backstab from Tyrian, who proceeds to frame Qrow for the deed and escape into the night.]]