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7Examples of MyGodWhatHaveIDone in [[WesternAnimation Western Animation TV Series]].
8----
9!!Works with their own pages
10[[index]]
11* ''MyGodWhatHaveIDone/SpongeBobSquarePants''
12[[/index]]
13----
14!!Other Works
15* ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'':
16** Sheen in the episode "Sheen's Brain" after [[spoiler:he nearly kills Jimmy and Carl.]]
17** Another example (although not word-for-word) is when Jimmy himself (accidentally) becomes a hall monitor in "Hall Monster". He goes... [[UnderStatement a little too far]]. Like, locking people in detention IN CAGES "too far".
18--->'''Jimmy:''' [[HeelRealization Is that... me?]]
19* Zummi says this in the GrandFinale of ''WesternAnimation/AdventuresOfTheGummiBears'', after his carelessness results in [[BigBad Duke Igthorn]] capturing most of the Gummis, learning the secret of [[SuperSerum Gummiberry Juice]], and taking over Dunwhyn Castle.
20* In an episode of ''WesternAnimation/AmericanDad'', one of [[Characters/AmericanDadRogerSmith Roger Smith's]] personae is a shifty guy who buys alcohol for young people, including Steve. He is horrified and [[OOCIsSeriousBusiness actually ashamed of himself]] when an [[BeerGoggles extremely drunk]] Steve brings home a [[{{Gonk}} spectacularly ugly girl]].
21* Played without dialogue in ''WesternAnimation/AmericanDragonJakeLong''. In the episode "Professor Rotwood's Thesis", just the looks on Trixie and Spud's faces say it all after they discover that Jake and the dragon they just sold to Rotwood for a cash reward are one and the same.
22-->'''Spud:''' I'm even more confused than usual. What does it mean? [[ItMakesSenseInContext And how does my mom's lasagna fit in to all this?]]\
23'''Trixie:''' I'll tell you what it means. It means we just sold our best friend to Rotwood for cash!
24* In an episode of ''WesternAnimation/TheAngryBeavers'', Norbert delivers this line in a neutral, almost bored, tone.
25** Daggett does a comical one in "Zooing Time" when he committed a crime and got Norbert sent to the zoo for it.
26--->'''Daggett''': Oh, no. What have I done accidentally on purpose?
27* ''WesternAnimation/AnimalBehaviour'':
28** Jeffery the bird undergoes regression therapy, and flashes back to a time when he was a chick and pushed his newborn baby brother out of the nest in a fit of jealousy.
29** Victor the gorilla gets one when [[spoiler: he briefly thinks he killed Dr. Clement by making him jump out the window.]]
30* A comedic version happens in the ''WesternAnimation/{{Animaniacs}}'' short "Temporary Insanity", twice to Mr. Plotz. The first time is when he realizes that instead of calling a temp agency, he's called the Warners and told them he needs help in the office while his secretary is out sick. The second time is when he "agrees" to the Warners helping him out. [[HilarityEnsues Needless to say, his fears do not go unwarranted.]]
31* In the ''WesternAnimation/{{Archer}}'' episode "Reignition Sequence", Cyril, Pam, Cheryl, Krieger, and Ray are all revolted and embittered by Archer and Lana repairing their relationship and being visibly smitten with each other -- they call up Archer's previous love Katya and ask her to come seduce Archer, which Lana will walk in on when she comes to Archer's penthouse expecting a romantic dinner, ruining their newfound happiness. Archer, however, rebuffs all of Katya's advances, telling her that not only has he changed for the better as a result of becoming a father to his and Lana's daughter, but that realizing that he might be in love with the woman who's both his best friend and the mother of his child is "like a miracle"; he tells Katya that she'll always have a special place in his heart, but he refuses to risk losing Lana again by being unfaithful. The five conspirators, parked in Krieger's surveillance truck outside so they can gleefully watch the carnage unfold, are all promptly reduced to remorseful weeping, and Cyril says that he feels like "a great, big, jerky, giant asshole". Cue all of them racing up the multiple flights stairs as fast as they can in an attempt to stop Lana before she enters the penthouse.
32* Subverted in the pilot episode of ''WesternAnimation/AquaTeenHungerForce''. After the Rabbot that he personally built escapes and goes on a rampage, Dr. Weird dramatically exclaims "What has science done?!" Also played straight by Frylock in the episode "Super Birthday Snake". (And yes, [[MemeticMutation this is the source of the Internet-popular quote, "What Has Science Done?!"]])
33* ''WesternAnimation/{{Arcane}}'':
34** Vander wordlessly makes it clear he blames himself for the death of Vi and Jinx's parents who followed him into revolt. Seeing the horrible price his uprising has on the two young girls shakes him to the core, with him abandoning his weapons to take them to safety instead of still fighting.
35** Vi is immediately remorseful when she realizes [[spoiler:how much she's hurting Powder by hitting and blaming her for the deaths of their family, looking at Powder's blood on her hand in horror, and quickly leaves to calm down and avoid hurting her more.]]
36** [[spoiler:When the Firelights attack during their reunion, Vi is openly horrified to see just how vicious her little sister has become while mowing them down, fully aware that Powder wouldn't have become so violent if she hadn't left her after the explosion.]]
37* ''WesternAnimation/AvatarTheLastAirbender''
38** [[Characters/AvatarTheLastAirbenderZuko Zuko]] had an extended one for the first half of the third season. His hasty actions at Ba Sing Se started to seem less heroic and more despicable, culminating in his [[HeelFaceTurn defection from the Fire Nation]] and [[CallingTheOldManOut goodbye speech]] to Ozai during the invasion. Even right after making the decision in the second season finale, he seemed almost in shock that he had betrayed his own [[ParentalSubstitute uncle]].
39** [[Characters/AvatarTheLastAirbenderSokka Sokka]] doesn't say this out loud, but after seeing him relive the memory of his dad leaving after he kicks Aang out of the group for [[spoiler:hiding his father's map]], his face tells he's thinking of something like that.
40** Right after yelling at Aang in the episode ''The Waterbending Scroll'', [[Characters/AvatarTheLastAirbenderKatara Katara]] immediately feels ashamed for doing so. The look Sokka gives her plainly says "[[WhatTheHellHero What the heck is wrong with you]]?!"
41** [[Characters/AvatarTheLastAirbenderAvatarAang Aang's]] reaction to burning Katara in ''The Deserter''. It was so bad that, until Season 3, he swore he'd ''never'' use Firebending again.
42** This was [[spoiler:Sozin's reaction to starting the war during the twilight of his life. He asks himself WasItReallyWorthIt, and concludes that no, it wasn't.]]
43** Played for laughs in SequelSeries ''WesternAnimation/TheLegendOfKorra'', when Tenzin helps his son Meelo train his lemur Pokey...only for Meelo to have soon trained LOTS of lemurs! Tenzin merely mutters "I've created a monster".
44** Suyin's reaction when her attempt to avoid arrest ends up scarring her sister Lin, which led to Lin hating her guts for years when mama Toph chose to protect Suyin instead of punishing her, which only hurt Lin more and further damaged their relationships with one another.
45** [[DownplayedTrope Downplayed]]. It appears that [[Characters/TheLegendOfKorraBolin Bolin]] is so focused on stopping Kuvira that he is not allowing himself to think about how he messed up by trusting her, but he is upset when he meets the innocent people Kuvira is interning in her camps, realizing that he has had a part (albeit unwittingly) in ruining their lives. Played Straight in episode [[Recap/TheLegendOfKorraS4E8Remembrances "Remembrances"]], where he spends the episode depressed because he left his friends and family to join up with a psychotic dictator, and fears that his girlfriend Opal will never forgive him.
46** [[Characters/TheLegendOfKorraZaheer Zaheer's]] reaction when [[spoiler:Korra reveals how his assassination of the Earth Queen allowed despotic dictator Kuvira to rise to power, he is subtly but still visibly disturbed.]]
47* ''WesternAnimation/CaptainLaserhawkABloodDragonRemix'': Rayman, the chief propagandist of Eden, genuinely believes that the regime he serves is a force for good and that his actions are improving the lives of children and his fellow nonhumans. Then he meets Bullfrog, who disabuses Rayman of these notions by showing him visions of how oppressive Eden really is: poverty is rampant, the police kill with impunity, the children who watch Rayman's cartoons are groomed to become child soldiers, and the other nonhumans are used and abused as slave labor. The realization that he's been an unwitting party to these atrocities horrifies Rayman so much that he vomits all over the floor.
48-->'''Rayman:''' What have I done?! I'm a ''monster!''
49* Dark Heart says this in ''[[WesternAnimation/CareBearsMovieIIANewGeneration Care Bears Movie II: A New Generation]]'' after discovering that, in a fit of blind rage, he's mortally wounded his only friend, Christy. [[spoiler:Saving her leads to LoveRedeems for him.]]
50-->'''Dark Heart:''' '''What'''...''have I...'' done?
51* In an episode of the ''WesternAnimation/CliffordTheBigRedDog'' cartoon, T-Bone has been trying to learn to be tough since he's gotten tired of everyone cooing about how cute he is. He eventually succeeds and goes about growling at anything that gets in his way. When he gets back to his house, his owner has a lady friend over and T-Bone is eager to show off how tough he is. But when he does...
52-->'''Woman''': ''(climbing onto her chair and obviously frightened)'' Sheriff, there's a mean dog out here!\
53'''T-Bone''' ''(horrified)'' Mean? I didn't want her to think I was mean; just tough!
54* ''WesternAnimation/Castlevania2017'': While fighting in the climax of the second season, Dracula and Alucard end up in Alucard's childhood bedroom. Looking at the room and toys he and Lisa made, Dracula realizes that he's trying to kill his own son before [[MercyKill requesting Alucard to kill him]].
55-->'''Dracula''': My boy... I'm- I'm killing my boy... Lisa... I'm killing our boy. We painted this room. We... made these toys. It's our boy, Lisa... Your greatest gift to me... ''And I'm killing him''. '''[[EmptyShell I must already be dead...]]'''
56* ''WesternAnimation/{{Centaurworld}}'': In "[[Recap/CentaurworldS1E8RideTheWhaletaurShaman Ride the Whaletaur Shaman!]]", the shaman genuinely thought she was helping people by taking their pain into herself, and is horrified to discover that she was actually condemning them to a dull, emotionless half-life.
57* ''WesternAnimation/CodeLyoko'':
58** This happens to Jérémie Belpois in the episode "Zero Gravity Zone". He harshly berates teammate Ulrich for declining to be part of the episode's Lyoko mission in favor of going to his soccer game, assuming that [[JerkJock Ulrich is only interested in being a glory hog.]] It's not until Ulrich's left that Jérémie finds out Ulrich just wanted to impress [[AbusiveParents his dad]] since his father isn't pleased with Ulrich's [[BookDumb poor grades]]; Jérémie is appropriately upset with himself (albeit in a subdued fashion) and is quick to apologize to Ulrich at the first opportunity.
59** Jim has one in "Code Earth" when, after chasing Jeremie down a flight of stairs, the genius falls down the stairs and hurts his ankle, later leading him to get fired.
60*** Jeremie gets one, but it is PlayedForLaughs, as he places the wrong CD into his mainframe and it plays one of Odd's music videos instead.
61** In Season 4, Yumi gets angry at Hiroki for her diary being lost, and yells at him, saying she'll "never forgive him". [[spoiler: Later, however, when she's separated from the others in the Digital Sea, and it's very possible she won't survive, she regrets it, and realizes if she dies here those terrible words will be his last memory of her. Fortunately, she's rescued by the rest of the team at the last minute.]]
62* ''WesternAnimation/TheCritic'': Eleanor Sherman utters this when she finally sees firsthand the humiliating effect her book, ''The Fat Little Pig'', has on Jay's life.
63* ''Franchise/DCAnimatedUniverse'':
64** The ''WesternAnimation/BatmanTheAnimatedSeries'' episode "[[Recap/BatmanTheAnimatedSeriesE62HisSiliconSoul His Silicon Soul]]" features a robot clone of Batman that seeks to kill Batman and take his place. Once he (apparently) succeeds at this, he goes through an existential crisis since the real Batman [[ThouShaltNotKill wouldn't kill anyone.]] He cries out "What have I done? I've taken a life!" and proceeds to smash the console evil supercomputer HARDAC was attempting to use in its evil ploy, both stopping the program and electrocuting himself, prompting the real Batman (who was hiding on a conveniently placed cliff crag) to wonder if his robot duplicate actually had a soul.
65** ''WesternAnimation/JusticeLeague'':
66*** In "[[Recap/JusticeLeagueS2E5And6OnlyADream Only a Dream]]", stuck in a nightmare by [[NightmareWeaver Dr. Destiny]], [[Characters/DCAUSuperman Superman]] thinks he's destroyed Metropolis and killed Lois Lane, Perry White, and Jimmy Olsen with his [[PowerIncontinence out-of-control]] superpowers. Superman doesn't actually say the words, but his tone, expressions, and body language show his devastation over what he thinks he's done.
67*** In "[[Recap/JusticeLeagueS2E19And20Hereafter Hereafter]]", after Superman is shot into the future, he finds the last human alive, [[LivingForeverIsAwesome Vandal Savage]], who recounts how he destroyed the entire solar system in his quest for power. When he prepares to send Superman back to his time to stop him, they have the following exchange.
68---->'''Superman:''' What happens to you?\
69'''Savage:''' Redemption, if I'm lucky.
70*** In "[[Recap/JusticeLeagueUnlimitedS2E11PanicInTheSky Panic in the Sky]]", after [[spoiler:the League's KillSat not-all-so-accidentally fires upon Cadmus HQ]], Superman rounds up the founding members and questions: "What have we done?" Doubly subverted, though: First, they tell him that they haven't done anything, since someone else hijacked their main computer. However, he replies that it was their choice to keep the orbital cannon, therefore all of them must take the responsibility.
71* ''WesternAnimation/DefendersOfTheEarth'': In "The Deadliest Battle", Rick starts dabbling with drugs in an attempt to relieve the pressure of having to live up to Flash's reputation. However, all the drugs do is [[DrugsAreBad totally mess him up]], leading to, among other things, his failure to finish installing a new early warning system in Monitor. When Kshin is nearly killed (by a supercharged Ming) as a result of Rick's negligence, an anguished Rick yells: "What have I done?! Kshin!" This leads to him taking the first step towards quitting drugs.
72* ''WesternAnimation/DextersLaboratory'':
73** In "Way Of The Dee Dee", Dee Dee tries to make Dexter behave more like her, but she realises she's gone too far when he gets into it and begins smashing up his laboratory; she begs him to stop (which he does), wails "WHAT HAVE I DONE?!" and runs off sobbing. Dexter solemnly begins to repair the damage... and [[DownerEnding the cartoon ends.]]
74** In another episode, Dexter tells Deedee he wishes her "imaginary friend" would go away so she sarcastically asks him "Why don't you just imagine him away?". Drama ensues.
75--->'''Dexter:''' Koosalagoopagoop! I imagine you... away!\
76'''Koosalagoopagoop:''' Goodbye, Dee Dee. You'll never see me again.\
77'''Deedee:''' Dexter...\
78'''Dexter:''' What have I done?
79* ''WesternAnimation/DocMcStuffins'':
80** Stuffy has this reaction in "Bronty's Twisted Tail" when he accidentally got Bronty's tail tangled with his maracas believing that the pain Bronty was in was his fault.
81** Lambie also has this reaction in "Top Lamb" when she accidentally messes up the new pink kitchen set and injured one of her hooves while Doc and the other toys were sleeping.
82* ''WesternAnimation/DragonBooster'': While it did not happen in the show due to cancellation, fans on the official forum all agreed that they explicitly ''did not'' want Moordryd's obviously-going-to-happen HeelFaceTurn to include a situation where he said "What have I done" in any way shape or form. Since the series was ScrewedByTheNetwork, we'll never know, but he seemed to be shaping up to be able to do without it.
83* ''WesternAnimation/DragonsRidersOfBerk'': In the first season finale, Mildew has one when Alvin decides that he's [[YouHaveOutlivedYourUsefulness outlived his usefulness]], throws him in prison with Hiccup, and prepares to serve him his pet sheep as his last meal. [[spoiler:Turns out to be a subversion as it was part of a XanatosGambit so Mildew could learn Hiccup's knowledge on dragon taming to teach Alvin and his men.]]
84* ''WesternAnimation/DuckTales1987'': In "[[Recap/DuckTalesS1E26TheGoldenFleecing The Golden Fleecing]]", Scrooge obsessively ignores all his nephews' protests about his behavior as he tries to get the titular treasure, but when he's confronted up close and personal with the fact that his lust for the Golden Fleece [[FriendOrIdolDecision will cost Launchpad his life]], he is horrified and immediately repents.
85-->'''Launchpad''': Mr. [=McDee=], help, please!\
86'''Scrooge''': What have I done? Nobody's life is worth this! I let my greed [[{{Pun}} pull the wool over my eyes]].
87* ''WesternAnimation/EdEddNEddy'': Edd says "Oh dear, what have I done?!" in "Pain in the Ed" after [[spoiler: accidentally destroying Ed's violin while trying to save it from Eddy.]] It even sends him into a tear-filled HeroicBSOD.
88** And in TheMovie while [[TearJerker writing a farewell letter to his parents]] [[NoodleIncident for the Eds' scam]] GoneHorriblyWrong.
89* ''WesternAnimation/FamilyGuy'' takes a peg from ''Series/ArrestedDevelopment'', after [[Characters/FamilyGuyStewieGriffin Stewie Griffin]] sends away a babysitter who possibly could've been his soulmate.
90** Played for laughs in "The Kiss Seen Around the World" where Chris says this almost word-for-word after saying "poo".
91** One episode has [[Characters/FamilyGuyPeterGriffin Peter Griffin]] making an outrageous art display to horrify the women in town to get his and Cleveland's wives back. Problem is, the (thankfully unseen) art is of ''[[{{Squick}} baby genitalia]]'', which thoroughly disgusts the latter to the point of telling the former that he'll have to call the cops on him and points out that some of the pictures date back to years before their initial idea was even conceived. A now-mortified Peter then breaks down and cries out "I need help!"
92* ''WesternAnimation/FostersHomeForImaginaryFriends'':
93** In "Seeing Red", Bloo asks "What have I done?" when his actions inadvertently cause Terrence's imaginary friend Red to have an emotional breakdown.
94** In "Cuckoo for Coco Cards", Bloo has another one when he realizes how horrible he was treating Coco when she started laying collectible baseball cards.
95--->'''Bloo''': Big, Insensitive, Jerkface...?
96** In ''WesternAnimation/DestinationImagination'', Mr. Herriman ''immediately'' regrets scolding World when he sees the landscape break down.
97-->'''Mr. Herriman:''' Good heavens! What's happening?\
98'''Bloo:''' You peeved[[note]]The closed captions say "pissed"[[/note]] him off, THAT'S WHAT'S HAPPENING!
99* ''WesternAnimation/{{Futurama}}'':
100** Parodied in one of the "Anthology of Interest" episodes, wherein Leela kills the professor by pushing him into a pit of man-eating anteaters:
101--->'''Professor''': Ohhh, you've killed me! You've killed me!\
102'''Leela''': Oh God, what have I done?\
103'''Professor''': I just told you; you've killed me!
104** Also played straight after framing Fry in destroying a bottle-ship in the episode "30% Iron Chef":
105--->*Sad violin solo* '''Zoidberg''': What have I DOOOOONE?!
106*** Although a few laughs are mined out of it; the punishment Fry has received for said destruction is negligible and Fry doesn't seem incredibly bothered by it, but Zoidberg reacts as if Fry is being sent down for murder.
107** And when Leela has to hunt penguins due to severe overpopulation. After firing into a crowd of penguins, she freaks out. [[spoiler:[[RoboticReveal But it turns out she only shot]] [[GoingNative Bender]].]]
108** TheMovie / MiniSeries "Bender's Big Score", when [[Characters/FuturamaBenderBendingRodriguez Bender]] [[spoiler:kills Fry under the control of an [[TheVirus evil computer virus]]]]. It screws him up that he manages to regret it rather [[RidiculouslyHumanRobots emotionally]] despite [[spoiler:the virus's effects.]]
109--->[[EvilLaugh "Bwahahaha! Hahahaha... haha...]] Oh, God! ''What have I done?!?''"
110** Happens again in the third installment "Bender's Game", where Leela [[spoiler:[[NotQuiteDead sort]] [[AllJustADream of]]]] kills an EldritchAbomination incarnation of Zoidberg under the belief he is an evil monster, only to learn he is not and swears off violence for a portion of the film.
111** Played with again in "Jurassic Bark", after Bender throws the fossilized dog into a lava pit:
112--->'''Bender''': Oh, what have I done?\
113'''Zoidberg''': You didn't do anything, don't beat yourself up.
114** Yet again, in "Law and Oracle", when [[Characters/FuturamaPhilipJFry Philip J. Fry]] discovers he will shoot Bender in the future, parodying ''Film/MinorityReport'':
115--->'''Fry''': [[TimeTravelTenseTrouble No, no! What have I will have done?]]
116** Bender, yet again, in "T: The Terrestrial" after [[DirtyCoward abandoning Fry on Omicron Persei 8]] in the middle of the latest conflict between said planet and Earth.
117* ''WesternAnimation/GalactikFootball'': Rocket says this almost word for word in the Season 2 episode "The Fallen Star", after realising his Netherball opponent is actually Tia. (He thought he was playing against various previous opponents)
118* ''WesternAnimation/GarfieldsBabesAndBullets'': The real killer is [[spoiler:praying for forgiveness when Spayed confronts him. He's almost relieved to have to go to jail]].
119* Subverted by [[WoobieDestroyerOfWorlds Demona]] in ''WesternAnimation/{{Gargoyles}}'' when she sees her clan has been destroyed (and later given an IronicEcho by John Canmore):
120-->"What have I... [[NeverMyFault what have THEY]] [[IgnoredEpiphany done to you]]?!"
121** Inability to admit her responsibility for anything that's happened to her is Demona's defining trait, and the only way she can deal with the endless guilt. The same thing is later said by [[MeaningfulEcho John Canmore]], one of the siblings from a long line of gargoyle hunters, which Demona also happened to be the source of, making it pretty ironic.
122*** WordOfGod is that eventually she ''will'' have that epiphany that all of her misery and suffering is ultimately her own doing, and when that happens she'll have some change of heart and go a little mad. Considering all the times she ''almost'' realizes it and shoves it away, that epiphany is going to be difficult to cause, but she ''is'' immortal.
123** Talon gets this after becoming an UnwittingPawn to Xanatos.
124** Xanatos himself has such a moment when he realizes in horror what he unleashed in creating [[SdrawkcabName Thailog]] from his Machiavellian smarts and Goliath's brawn.
125** And in the pilot, the wizard who originally cursed the Gargoyles to stone sleep when he thought that the princess was killed, but soon realizes his mistake after she turns up alive. Worse, because the page that contained the spell to undo the curse was burnt up.
126* ''WesternAnimation/GravityFalls'':
127** In "Scary-oke", Dipper Pines has one when he unleashed a zombie horde.
128** In "Society of the Blind Eye": [[spoiler: It was revealed that [=McGucket=] worked with the author of the Journals on a project that was supposed to help the world. The disaster produced this reaction from [=McGucket=], enough to drive him to erase his memories to the point of insanity.]]
129** "A Tale of Two Stans" gives us a twofer; [[spoiler: in the flashback, Stan and [[Characters/GravityFallsTheAuthor Ford]] get into a fight, and during the tussle the Universe Portal activates. Ford gets this when he pushes Stan onto the heated control console, burning him horribly, and Stan does it when his counter knocks into the Portal and out of reality.]]
130--->[[spoiler: '''Ford:''' ''STANLEY!'' Oh my gosh, I'm so sorry! Are you all right?!]]\
131[[spoiler: '''Stan:''' Stanford? Stanford, come back! I didn't mean it! ''(Begins fiddling with Portal controls)'' I just got him back, I can't lose him ''again! STANFORD!!'']]
132* Appears to be this in the episode "A Dumb Wish" in ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'' with Mandy when she [[BeCarefulWhatYouWishFor accidentally wishes everyone on Earth away into oblivion]] ...but then she gives a devilish smirk and goes home to watch TV.
133** Played straight in "Billy’s Growth Spurt". Grim has this reaction when he sees that his Granny’s remedy for Billy’s food poisoning has resulted in a sentient parasitic growth on Billy’s back.
134** Grim then has another one "Billy and Mandy vs. The Martians", after he [[FaceHeelTurn willingly helped the Martian Grim Reaper, Morg, invade Earth and turn everyone into zombies]], and used Billy as a way to control said zombies. He begins to have his HeelFaceTurn after discovering that [[spoiler: Morg had destroyed the Reapers of all the other planets and kept their scythes as trophies, and that he might [[YouHaveOutlivedYourUsefulness possibly do the same to Grim after he successfully conquered the universe]].]] And surprisingly, it's ''Billy'' of all people that finally talks Grim back to his senses.
135--->'''Billy:''' Sometimes our best friends are people we really don't like.\
136'''Grim:''' Then you guys must be my best friends ever.\
137'''Billy:''' Well, if there's anything I've learned from [[ItMakesSenseInContext destroying Fancy Jake]] and stowing away in your trunk to Mars, and returning in a last-ditch effort to save the planet, is that you can pick your friends, and you can pick your nose, but you can't pick your friend's nose. You have to let them be who they are, and pick it themselves.\
138'''Grim:''' ...''What have I done?!''
139* ''WesternAnimation/HarleyQuinn2019'': [[Characters/HarleyQuinn2019TheCharacter Harley Quinn]] has been growing more a conscience away from Joker. When her psychological projections and corrupted view of romance meant she nearly killed Nora Fries and forced Victor to do a HeroicSacrifice to cure her, she's suitably horrified.
140* In the ''WesternAnimation/HeManAndTheMastersOfTheUniverse1983'' episode "The Problem With Power", Skeletor tricks He-Man into believing he's killed an innocent bystander (really a minion who was FakingTheDead) with his carelessness. In the HeroicBSOD that follows, He-Man retires. Fortunately, Orko finds out about the trick, and tells He-Man.
141* ''WesternAnimation/HeyArnold'':
142** During a Halloween Episode, the kids go trick-or-treating disguised as aliens. Unfortunately, a Radio/TheWarOfTheWorlds-style radio broadcast convinces the adults that it's an actual alien invasion, who then form a lynch mob out to get the kids. (It doesn't help that they accidentally used exterior latex paint instead of facepaint, which doesn't rub off.) At the climax, Bob Pataki grabs Helga by the neck and starts choking her, only to realize his mistake when it starts raining and the paint finally washes away.
143---> "I almost killed my own daughter. I'm a monster!"
144** [[Characters/HeyArnoldArnoldShortman Arnold Shortman]] felt this when he blinds Helga on April Fool's Day.
145** In the episode "Arnold Betrays Iggy", Arnold accidentally discovers that Iggy wears bunny pajamas, and Sid and Stinky find out and quickly blab it to everyone; Iggy, believing that Arnold did so, is so pissed that he repeatedly blows off all of Arnold's attempts to earn his forgiveness, ultimately deciding that the only way Arnold could possibly do so is by putting on the bunny pajamas himself and grovelling at Iggy's feet in full view of the entire neighborhood. It's only when Arnold does so, and is subsequently humiliated in public, that Iggy overhears that Sid and Stinky merely figured it out on their own and realizes his mistake. Unfortunately, when he arrives to apologize to Arnold the next day, Arnold angrily blows him off; in the end, even though Iggy regretted his actions, it was [[MoralEventHorizon too late for him to fix anything]].
146* ''WesternAnimation/Invincible2021'' gets it across brilliantly without words. After subjecting Mark to a NoHoldsBarredBeatdown in the Season 1 finale, Nolan stops to vent his frustrations and ask Mark what he'll have after five hundred years. Mark's weakened response? [[ArmorPiercingResponse "You, dad. I'd still have you".]] The pained expression on Nolan's face afterwards says it all.
147** An earlier example occurs at the end of the very first episode, in which [[spoiler:after Nolan mercilessly slaughters the Guardians of the Globe, he [[VillainousRROD gets exhausted]] and, in his bloodied and bruised state, ponders upon the carnage he's inflicted both horrified and remorseful, with his expression twisted into a broken ThousandYardStare before collapsing to the ground from his injuries]].
148* Jackie Chan from ''WesternAnimation/JackieChanAdventures'' yells this in the second episode of Season 3, "The Powers Unleashed", when he realizes that destroying the talismans which results in its powers to be transferred to the animals is not really a good idea.
149* ''WesternAnimation/JadeArmor'': [[spoiler:Following the purification of the Shards inside his body, BigBad the Crimson Lord breaks down having a HeelRealization immensely regretting his actions and begging for forgiveness. He then gives up all his Shards reverting back to his fluid form.]]
150* When Captain Hook gained the power to turn stuff into gold in ''WesternAnimation/JakeAndTheNeverlandPirates'', he went crazy and accidentally turned two of his crew mates into gold. He uttered those words. And ended up just running around turning Neverland into gold.
151* ''WesternAnimation/{{Kaeloo}}'': Kaeloo's reaction to seeing her friends (usually [[VillainProtagonist Mr. Cat]]) severely beaten up by her after [[JekyllAndHyde transforming]].
152** Kaeloo, Mr. Cat and Quack Quack's reaction in Episode 105 to [[spoiler: realizing how horribly they've treated Stumpy until then]].
153** In Episode 125, [[spoiler: Mr. Cat shoots [[NighInvulnerable Quack Quack the indestructible duck]] with a bazooka, but he soon finds out that Quack Quack isn't getting up and is actually dead. Upon realizing what he's done, [[OOCIsSeriousBusiness Mr. Cat starts crying. The scene cuts to him at Quack Quack's funeral looking especially sad]]. However, he doesn't do anything to indicate that he's happy when Quack Quack comes BackFromTheDead.]]
154* In an episode of the ''ComicStrip/KrazyKat'' animated series, Krazy is BornLucky, and Ignatz is jealous and wants her luck for himself. Then he comes up with the perfect solution -- he'll give her some CementShoes, get her to sign her luck away to him, then dump her underwater. Only after he's already done this does he have this reaction and dive underwater to save her.
155--> "I must have been insane!"
156* In episode 2 of ''WesternAnimation/TheLegendOfPrinceValiant'', Valiant stumbles into the territory of a large man who angrily orders him to get out and attacks him. Valiant defends himself, but loses his temper and nearly beats the man to death. While Arn says he was justified, Valiant is horrified and atones by treating the man's injuries and taking him to his mother.
157* ''WesternAnimation/LetsGoLuna'': In "You Can't Move the Moon", Carmen feels terrible about hurting Salami's toe with her Hyoshigi, so she takes it upon herself to enlist a Sumo wrestler to put on an exhibition match to replace Salami's act instead.
158* ''WesternAnimation/LooneyTunes'':
159** One of the best-known examples is in the short, "WesternAnimation/WhatsOperaDoc" where Elmer Fudd, after spending the whole short exulting in [[Music/RichardWagner Wagnerian]] time that he would "Kill the Wabbit!", laments what he's done after he does it. (He also does this in some other shorts, but this was the most recognizable instance.)
160** This goes back to the very first Bugs short, "WesternAnimation/AWildHare", in which he shoots at Bugs and then Bugs plays dead, causing Elmer to break down in tears and call himself a murderer.
161** Which asks the question of [[FridgeLogic why does Elmer even go hunting?]]
162*** It could be that Bugs' "death" scene is played out with so much gusto and pathos that Elmer is left feeling ultimately guilty. Or possibly that Elmer's used to Cartoon Logic by this point (i.e, Daffy Duck being only humiliated when shot).
163** Spoofed in "The Wabbit That Came to Supper"; Elmer is willed $3 Million, OnOneCondition; that he not harm a living creature -- especially rabbits. Bugs proceeds to be TheThingThatWouldNotLeave, until Elmer tricks him into going out the door. Bugs feigns death from the cold, leading Elmer to lament that he's indirectly killed his nemesis; "Oh, what have I done!? Three miwwion bucks! Shot to pieces!"
164** The dog in "Hare Ribbin'" does this after he takes a bite of the rigged "rabbit sandwich" Bugs makes for him and Bugs plays out his "death" scene.
165** Bugs himself zig-zags this in "Falling Hare" as he almost takes the Gremlin's mallet to a blockbuster bomb.
166--->'''Bugs:''' [[NoIndoorVoice WHAT]] [[OhCrap AM I DOING???!!]]
167* In the episode "Fatherklok" of ''WesternAnimation/{{Metalocalypse}}'', Skwisgaar says this after pushing his stepfather in a fit of rage and causing him to hit a coffee table -- it breaks underneath him, and he groans in agony as he looks at the shards of glass embedded in his hand.
168* In ''WesternAnimation/MarvelsSpiderMan'', Peter cries out in anguish "WHAT HAVE I DONE?!" when he catches the criminal who killed his Uncle Ben and realizes it's the crook he let get away earlier.
169* In the segment opening of the cartoon of ''The WesternAnimation/MiltonTheMonster Show'', Professor Weirdo says this when Milton -- made kind and lovable after having too much kindness added to him -- arises.
170* ''WesternAnimation/MollyOfDenali'': In "Gold Strikeout", Molly, Tooey, and Trini use a sluice box to prospect for gold in Gold Creek. Later, they are horrified when they realize that their sluice box was blocking the salmon.
171* At the beginning of the ''WesternAnimation/MoonbeamCity'' episode "Lasers and Liars", [[CluelessDetective Detective]] [[CowboyCop Dazzle]] [[TheHero Novak]] snarks about [[DaChief Chief]] Pizzaz [[FallenPrincess Miller]]'s menstrual cycle and [[AllPeriodsArePMS accompanying mood swings]], and cluelessly muses about [[spoiler:his and Pizzaz's annual romantic/intimate tryst]] during the previous year's weekend-long "Cop Con". He then accidentally hints that [[spoiler: [[MySecretPregnancy the two conceived a child]]]], but that Pizzaz [[spoiler: [[ConvenientMiscarriage lost the baby]] during the first trimester]]. Pizzaz is so enraged at Dazzle for letting this info slip that she [[BigShutUp viciously slaps him silent]], shrieking "THAT'S ENOUGH!" and leaving a visible hand print across his face. Yet for all the threats she usually makes to Dazzle, Pizzaz becomes immediately and incredibly horrified at the fact that she just physically assaulted Dazzle, remembering that angry slapping is [[spoiler:the preferred form of interpersonal violence for Pizzaz's four malicious, sadistic, and abusive older sisters]].
172* ''Franchise/MyLittlePony'':
173** ''WesternAnimation/MyLittlePonyAndFriends'': In "[[Recap/MyLittlePonyAndFriendsE42BabyItsColdOutside2 Baby, It's Cold Outside, Part 2]]", the villainous King Charlatan is shocked out of his crusade when, in a fit of anger, he turns his freezing EyeBeams on his own son. It takes a talking to for it to sink in past his own attempts to rationalize his actions to himself, but his grief and guilt are ultimately enough to shake him loose from his villainy.
174** ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
175*** In "[[Recap/MyLittlePonyFriendshipIsMagicS2E3LessonZero Lesson Zero]]", [[Characters/FriendshipIsMagicTwilightSparkle Twilight Sparkle]] has this reaction after her insane attempt to create a friendship problem via an AppleOfDiscord [[GoneHorriblyRight goes horribly, horribly, right.]]
176*** In "[[Recap/MyLittlePonyFriendshipIsMagicS2E5SisterhoovesSocial Sisterhooves Social]]", [[Characters/FriendshipIsMagicRarity Rarity]] totally loses it with her sister after an entire day of getting on one another's nerves (including when Sweetie Belle makes a picture out of the rare gems Rarity had been saving for a dress for an important client), resulting in a huge argument which makes both swear that they wished they were only children and storming off. Later on she's tidying up and looks at the picture again, [[spoiler:shown for the first time to be a picture of the two nuzzling inside a shining blue heart.]] Rarity’s reaction is almost word for word.
177*** "[[Recap/MyLittlePonyFriendshipIsMagicS2E10SecretOfMyExcess Secret of My Excess]]": [[Characters/FriendshipIsMagicSpike Spike]] doesn't come right out and say it, but the emotion is conveyed by his reaction to seeing Ponyville devastated, and his own giant footprints.
178*** In "[[Recap/MyLittlePonyFriendshipIsMagicS2E12BabyCakes Baby Cakes]]"", despite being only a month old, the Cake Twins are smart enough to realize they've [[BadlyBatteredBabysitter gone too far]] when they see Pinkie [[OcularGushers bawling]].
179*** ''The entire town of Ponyville'' gets one in "[[Recap/MyLittlePonyFriendshipIsMagicS2E15TheSuperSpeedyCiderSqueezy6000 The Super Speedy Cider Squeezy 6000]]", when their support of the Flim Flam brothers almost causes the Apple family to ''lose their entire livelihood''.
180*** "[[Recap/MyLittlePonyFriendshipIsMagicS2E13HearthsWarmingEve Hearth's Warming Eve]]" this happen when Clover the Clever, Smart Cookie and Private Pansy discover that the blizzard that destroyed their homeland and is now threatening Equestria is caused by Windigos, winter spirits that have been [[EmotionEater feeding off of]] [[ThePowerOfHate the hatred between the three tribes of ponies]], meaning their pointless hatred for one another was the cause of everything that has happened.
181*** "[[Recap/MyLittlePonyFriendshipIsMagicS2E19PuttingYourHoofDown Putting Your Hoof Down]]": [[Characters/FriendshipIsMagicFluttershy Fluttershy]] gets this after being a huge bitch to Pinkie Pie and Rarity, due to taking her assertiveness lessons from Iron Will.
182*** "[[Recap/MyLittlePonyFriendshipIsMagicS2E25ACanterlotWeddingPart1 A Canterlot Wedding, Part 1]]": Twilight has a moment of this when everyone calls her out on calling Cadance evil. [[spoiler:The twist is that it wasn't really Cadance at all, but an impostor posing as her.]] Thus, when she reveals that [[spoiler:the first Cadance she met is an impostor by helping the real Cadance escape]], everyone else has this when they realize [[spoiler:'''she was right'''. The impostor, the changeling queen Chrysalis, rubs into their faces that if they had just ''listened'' to Twilight, she could have been stopped. Applejack goes to apologize to Twilight during the NearVillainVictory, but the latter brushes it off and doesn't hold against them, stating that Chrysalis had fooled everypony and that it wasn't their fault.]]
183*** In "[[Recap/MyLittlePonyFriendshipIsMagicS3E4OneBadApple One Bad Apple]]", Cutie Mark Crusaders, fed up with Babs Seed bullying them to impress resident bitches Diamond Tiara and Silver Spoon, [[TheDogBitesBack set her up for a humiliating fall]]. Then they learn from Applejack that [[spoiler:she's being bullied herself back in Manehattan]].
184---->'''All three''': WHAT'D WE DO!?
185*** In "[[Recap/MyLittlePonyFriendshipIsMagicS3E9AppleFamilyReunion Apple Family Reunion]]", [[Characters/FriendshipIsMagicApplejack Applejack]] get this after the Apple family barn was destroyed.
186*** In "[[Recap/MyLittlePonyFriendshipIsMagicS3E11KeepCalmAndFlutterOn Keep Calm and Flutter On]]", [[Characters/FriendshipIsMagicDiscord Discord]] has one of these moments in when he realizes that Fluttershy, [[spoiler:the only pony to have shown faith and trust in his rehabilitation]], takes his jokes and her patience too far when he floods Sweet Apple Acres.
187*** "[[Recap/MyLittlePonyFriendshipIsMagicS3E13MagicalMysteryCure Magical Mystery Cure]]": Twilight says "What have I done?" after discovering that [[spoiler:her careless use of magic has ruined her friends' lives and made all of Ponyville miserable, and she doesn't know how to undo it.]].
188*** "[[Recap/MyLittlePonyFriendshipIsMagicS4E8RarityTakesManehattan Rarity Takes Manehattan]]": Rarity ''sings'' "what have I done" when her friends don't show up for her fashion show and she thinks she has alienated them. [[spoiler:They actually just overslept because they were exhausted from helping her sew new dresses the night before.]]
189*** In "[[Recap/MyLittlePonyFriendshipIsMagicS4E20ForWhomTheSweetieBelleToils For Whom the Sweetie Belle Tolls]]" Sweetie Belle gets a massive one, as due to a tiff, she sabotages Rarity's hat that she is to present to a celebrity that will make or break her career. Luna shows Sweetie Belle what would happen if she doesn't fix things before the presentation. Which includes, the hat being a complete joke, Rarity being the laughing stock of Equestria, losing her confidence as she couldn't figure out what she did wrong, going literally insane and isolating herself from all of her friends to the point of being a crazy cat lady.
190*** In "[[Recap/MyLittlePonyFriendshipIsMagicS4E26TwilightsKingdomPart2 Twilight's Kingdom, Part 2]]", Discord is obviously having second thoughts during his team up with Tirek. But this trope doesn't hit him completely until Tirek, unsurprisingly, betrays him and takes his power, just like he did to Fluttershy.
191*** "[[Recap/MyLittlePonyFriendshipIsMagicS5E26TheCutieRemarkPart2 The Cutie Re-Mark, Part 2]]": [[spoiler: [[Characters/FriendshipIsMagicStarlightGlimmer Starlight Glimmer]]]] gets this reaction when she learns the hard way [[spoiler:what her diabolical plan to change history will eventually lead to. Equestria becomes ''[[BadFuture a completely barren wasteland]]'', and hardly the grand utopia of equality she imagined]].
192** ''WesternAnimation/MyLittlePonyEquestriaGirls'': [[Characters/MyLittlePonyEquestriaGirlsSunsetShimmer Sunset Shimmer]] has one after [[OneWingedAngel transforming into a "raging she demon"]], turning a high school into her own personal army, and nearly killing Twilight Sparkle, triggering her HeelFaceTurn.
193* ''WesternAnimation/MyLittlePonyPonyLife'': While not said, [[Characters/FriendshipIsMagicRainbowDash Rainbow Dash]] had a moment of this after realizing that she didn't take the time needed to plan Fluttershy's party (which led to her multiplying the butterflies so many times, leading to this mess). To fix this, she decided to take her time, to prevent it.
194* ''WesternAnimation/TheNewAdventuresOfWinnieThePooh'': While not uttered, Rabbit has one of these moments after realizing Pooh was trying to help him in fetching honey (Before this, he had tricked Pooh into thinking he's moving away due to Pooh's constant borrowing for honey.) what follows is one of the show's [[Heartwarming/TheNewAdventuresOfWinnieThePooh more heartwarming moments]].
195* ''WesternAnimation/PinkyAndTheBrain'':
196** The Brain starts to realize that he has a problem when he goes a little crazy and accidentally pushes Pinky off of the table (or whatever it is that they're on):
197--->'''Brain''': What have I done? Pinky! Are you all right?\
198'''Pinky''': Uh huh. Narf! But I'm afraid my secret playhouse will never be the same... (''he had landed on top of it'')\
199'''Brain''': Oh, it's all my fault. This obsession with taking over the world is causing me to hurt the ones I... [[LastSecondWordSwap tolerate]].
200*** This event prompts Brain to go to an organization called Megalomaniacs Anonymous in an attempt to get over his obsession with world domination. In a subversion, he decides in the end to return to his quest, since it's actually "a mission of mercy" -- if he ruled the world, it would be a better place for everyone. (This ties in with a subdued, implied MindScrew of the series: the title song only promised that "one is a genius, the other insane" but never stated which was which.)
201** Played for laughs when Brain concocts a scheme to use a time machine to alter the past in order to make mice the dominant species, therefore making it easy for him to take over the world. He succeeds, but unfortunately, all the mice citizens are basically Pinky clones, horrifying Brain. He quickly tries to reset everything back to the way it was as he didn't even want to think about ruling a world of idiots.
202--->'''Pinky''': But why, Brain? With things like this, it should be easy for you to take over the world.\
203'''Brain''': That may be true, Pinky, but who would want to!?
204** Played without dialogue in the ChristmasSpecial, after Brain ignores Pinky sobbing over his "stupid letter" to Santa he never got round to delivering, and eventually confiscates it in anger. Just before his plan is set in motion, he reads it out of curiosity, to find it is in fact a heartwrenching speech about his "best friend in the whole world, the Brain" and pleading for Santa to give every present intended for Pinky to him instead, since he never gets any reward for his hard effort. By the end of the letter, Brain is left in blubbering tears from remorse and aborts the scheme.
205* In one episode of the 2010 ''[[WesternAnimation/PoundPuppies2010 Pound Puppies]]'', Niblet says it when he sees that his angry outburst at his [[GenkiGirl hyperactive little sister]] caused her to hitch a ride with [=McLeish=]'s dog-hating mother.
206* ''WesternAnimation/ThePowerpuffGirls1998'':
207** The girls have this moment at the end of "Twisted Sister". [[spoiler: Bunny dies after she saves the girls. Earlier in the episode, the girls had been mean to her, treating her like a mistake -- which was, in itself their fault. Even the narrator is saddened.]]
208** The girls again have this moment in "Candy is Dandy" after they give Mojo Jojo a severe NoHoldsBarredBeatdown after he hords the Mayor's candy jar from them.
209** The Professor has this moment in "Criss Cross Crisis" after his latest experiment causes everyone in Townsville to switch bodies.
210** Even [[SpoiledBrat Princess Morbucks]] goes through this in the [[WesternAnimation/ThePowerpuffGirls2016 revival]] episode "Aliver". She cheats her way through a reality contest in which the girls are participating as well. Princess claims victory but finds that the final challenge had apparently killed the girls. Princess tearfully confesses she cheated but never intended for this to happen to them. [[NotQuiteDead Then the girls wake up.]]
211* ''WesternAnimation/QuackPack'': Gil goes through this in "Koi Story" when Daisy points out to him that his pet fish Winston is not really happy.
212* ''WesternAnimation/ReBoot:''
213** PlayedForLaughs in ''The Medusa Bug'' when Hexadecimal sets out to [[TakenForGranite infect all of Mainframe with the Medusa Bug]] and... [[TheBadGuyWins succeeds]]. She's quite pleased with herself until Bob, who's immune to the bug, points out that, with everything in stone, Mainframe will be predictable, quiet, peaceful, and calm forever. Realizing he's right, and having ''[[ChaoticNeutral none of that]]'', Hex has a mini-freak out and undoes the bug.
214** Captain Capacitor says this in a direct reference to ''Film/StarTrekIIITheSearchForSpock'' while watching [[spoiler:his ship, the ''Saucy Mare'', get shot out of the sky onto enemy forces while packed with explosives]].
215* The narrator of ''WesternAnimation/RockyAndBullwinkle'' goes through this in the Treasure of Monte Zoom story arc after he lets Boris hear a vital clue about the treasure's whereabouts (within the car Rocky and Bullwinkle have driven off).
216-->'''Narrator:''' Oh, dear... what have I done??\
217'''Natasha''': You have just signed death warrant for moose, dahlink!\
218'''Boris:''' And you've extended the story another two episodes!
219* ''WesternAnimation/{{Rugrats}}'' plays with this. Chuckie says this when he's told to release a balloon holding Angelica's doll. Susie said it was Angelica who released it as punishment. Phil and Lil, well...
220-->'''Phil:''' I thought Chuckie let go of the balloon.\
221'''Lil:''' No, Angelica let go of the balloon. You just weren't paying attention.\
222'''Phil:''' Oh.
223** A few straighter examples happen towards Angelica, though [[AesopAmnesia they usually don't stick]]. One episode had Angelica running away to get back at her being punished only to find Drew at Tommy's house laughing and having a good time (she thought he was ''happy'' she was gone; he hadn't realized Angelica ''left'') but it still hurt her enough to realize she made a mistake. Another time had Angelica covering herself with "vanishing cream" to make herself "invisible" at the same time Didi got Drew to enforce ignoring her to get her to stop. Again, major coincidences got Angelica to realize how horrible she'd been.
224*** Angelica gets a ''big'' moment of this in ''WesternAnimation/RugratsInParis'' when Coco heads off to marry Chaz, ordering Chuckie's [[TragicKeepsake beloved bear Wawa]] [[KickTheDog destroyed]] and Chuckie breaks down; it drives her to ''apologize'' for what she did.
225* ''WesternAnimation/SheRaAndThePrincessesOfPower'': [[Characters/SheRaAndThePrincessesOfPowerGlimmer Glimmer]] blows it in spectacular fashion in the fourth season, and her realisation of how badly she screwed up is pretty rough. [[spoiler:Furious at Adora, fixated on defeating the Horde at all costs, she gambles with the power of a First One superweapon to break the back of the Horde's army...and while she manages to win the battle, the weapon starts powering up in earnest, and she immediately admits that this is all her fault and does her level best to fix it. It doesn't work -- the weapon is only stopped by Adora destroying the Sword of Protection -- but at least she tried. Catra, whose own response to nearly destroying the world was to double down, and who was raised in an environment where admitting error was discouraged, seems so astonished by this that she can't help but follow Glimmer.]]
226* ''WesternAnimation/TheSimpsons'':
227** Parodied in the episode "Simpsons Tall Tales". In a retelling of the Johnny Appleseed story, Homer realizes he singlehandedly hunted the buffalo (their main food source) to extinction:
228--->'''Homer''': What have I done? What have I done?!\
229'''Bart''': Dad! Look! There's still two left!\
230''[WhipPan over to two buffaloes who are promptly shot dead]''\
231'''Homer''': (holding a still smoking shotgun): What have I done? What have I done???
232** Also parodied in "Homer's Odyssey", when he steals and breaks open Bart's piggy bank for beer money:
233--->'''Homer''': Oh no! What have I done? I smashed open my little boy's piggy bank, and for what? A few measly cents, not even enough to buy one beer. Wait a minute, lemme count and make sure... not even close.
234** Parodied ''again''.
235--->'''Homer:''' What have I done?! What am I doing?! What will I do?!
236** Also in the episode "24 Minutes" [[spoiler:Martin betrays the good guys by handing Bart over to the bullies in exchange for his Ant Farm. After realizing what he did and the consequences of it, he says "What have I done?!" out loud. Martin goes to a nearby room by himself as dark, sad music plays. We then see him hanging himself... until the camera pans out revealing he's hanging from his underpants, thus giving himself a wedgie]]
237** In "Bart The Lover" [[Characters/TheSimpsonsBartSimpson Bart Simpson]] answers Mrs. Krabapple's personal ad by pretending to be the world's perfect lover, ultimately setting her up for a PrankDate. This is his reaction when he sees just how hurt his teacher is.
238** Played straight in "When Flanders Failed". [[Characters/TheSimpsonsHomerSimpson Homer Simpson]], jealous of Flanders' success, wishes that Ned's ''Leftorium'' falls apart. When he sees Flanders' business doing poorly, and doesn't bother to tell his left-handed friends about the products they need, [[KickTheDog and to twist the knife]], smugly buys Flanders' stuff for cheap. He reacts this way to seeing Flanders family forced to live in their car.
239** Also played straight in "The Telltale Head" when in order to be seen as cool in the eyes of Jimbo and Dolph, Bart sneaks out in the middle of the night and chops off the head of town founder Jebidah Springfield's statue. Right after he finishes sawing the head off, he says, "Oh, no. What have I done?"
240* ''WesternAnimation/SouthPark'':
241** In "Something Wall-Mart This Way Comes", one of the creators of Wall-Mart exclaims, "Jesus, what did we do?!" [[spoiler:and then [[DrivenToSuicide shoots himself]]. And then [[NoDeadBodyPoops craps his pants]].]]
242** The mayor of South Park also utters this after surveying the Hippie Music Jam Fest that she signed the permit for in "Die, Hippie, Die".
243** The sellers of Ritalin use this exact phrase (well, in plural form) when they learn that by prescribing it to everyone, they now have a town full of children who [[FelonyMisdemeanor like Phil Collins]].
244** "Raising the Bar" has everyone realizing just how low they sunk in life and wondered what on earth had made them act like such lowlives once the bar was raised.
245** [[Characters/SouthParkKyleBroflovski Kyle Broflovski]] experiences a textbook case of this in "Toilet Paper" after [[FelonyMisdemeanor TPing a teacher's house]].
246** Mr. Adams reacts this way in "The Poor Kid" when he sees how awful the foster home he sent some children to is.
247** Sergeant Yates leads a mission to arrest "[[Music/MichaelJackson Mr Jefferson]]" after reading on his file that he's rich and black. When his target arrives home and is revealed to be white, Yates is horrified at the injustice that he nearly committed, causing him to vomit and to consider quitting his job.
248** Kyle's dad experiences one in "Chickenpox". After fighting with Kenny's dad, he explains to his son that the world runs on a hierarchy of gods and clods. Then he sees a note written by Kyle thinking that [[ThoseWackyNazis the world would be a much better place if the gods got rid of all the clods]]...
249** Another one Kyle's dad experienced was in "The Damned", when he found out the Danish breast cancer survivor he's been trolling online [[spoiler: commited suicide.]] It's then [[SubvertedTrope subverted]] when it becomes clear that he doesn't give a damn about the fact his trolling caused someone so much emotional pain, he's just afraid of getting caught and into trouble because of it.
250** Kyle has one after his action led to [[spoiler: Garrison to nuke Canada in a fit of anger.]] It basically makes the aforementioned [=TPing=] look like an afterthought.
251* In ''WesternAnimation/SpaceGhostCoastToCoast'', one episode deals with a pledge drive that's not going very well. Frustrated, Space Ghost orders the audience to give him money, or he'll shoot Brak. Brak starts crying, and Space Ghost feels ashamed of what he's doing. Brak calms down and tells him that "it's okay", which Space Ghost cheerfully takes as permission to shoot him.
252** In another episode, Space Ghost takes revenge on Zorak for thrashing his apartment by blasting him so many times he ceases to exist (or so he thinks). When he realizes that he actually killed him, Space Ghost shouts "Heaven help me, what have I done?!" before casually following up with "Oh well" and continuing the show without him.
253** In a third episode, Space Ghost's pet sea monkey Banjo grows to immense size and starts blasting Zorak, causing Space Ghost to bellow "What have I unleashed?!" Then Space Ghost kills Banjo, which prompts another moment.
254--->'''Space Ghost:''' Banjo. Banjo! BAN-JOOO!!!
255* The 1990's ''WesternAnimation/SpiderManTheAnimatedSeries'' took a number of steps to making J. Jonah Jameson more sympathetic, but one of the more [[MythologyGag meaningful to fans of the comic]] was his pulling this when Mac Gargan, aka the man Jameson turned into the Scorpion to defeat Spider-Man, went on the rampage.
256* In ''WesternAnimation/StarTrekLowerDecks'' episode “Trusted Sources”, Captain Freeman moans “What have I done?!” when it turns out that [[spoiler: She punished her daughter Mariner for something she hadn’t done and she quit Starfleet and went under the radar in retaliation.]]
257* ''WesternAnimation/StarWarsTheCloneWars'': In the Umbara Arc's [[Recap/StarWarsTheCloneWarsS4E10CarnageOfKrell "Carnage of Krell"]], the clone troopers of both the 501[[superscript:st]] and the 212[[superscript:th]] show signs of this after realizing that [[spoiler:General Pong Krell had tricked them into attacking and killing each other by separately telling each battalion that the enemy was disguised as the other battalion.]] Captain Rex, who is usually cool and collected, [[HeroicBSOD visually breaks down]]. Tup puts it into words:
258-->"This can't be happening. What have we done?"
259* ''WesternAnimation/StevenUniverse'':
260** PlayedForLaughs during [[Recap/StevenUniverseS2E10RisingTidesCrashingSkies "Rising Tides, Crashing Skies"]]. Ronaldo realises he's convinced the thing that was [[CharacterBlog keeping Beach City weird]] to leave, at which point he howls "WHAT HAVE I DONE?" at the ceiling; of course, being [[IJustWantToBeSpecial Ronaldo]], he's [[SkewedPriorities upset that it means he won't have anything to blog about]]. InelegantBlubbering ensues.
261** Also used seriously. Such as in [[Recap/StevenUniverseS2E14CryForHelp "Cry for Help"]], where at the end of the episode [[Characters/StevenUniversePearl Pearl]] realizes [[spoiler:that by lying to Garnet in order to create situations in which to fuse with her, Garnet is now betrayed and ''absolutely furious'']]. We have a long shot of her eyes wide open in terror as she clutches her stomach. The next episode, [[Recap/StevenUniverseS2E15KeystoneMotel "Keystone Motel"]], also features [[spoiler:Ruby and Sapphire]] realizing that their arguing has been hurting everyone around them, especially Steven, who now blames himself.
262** In [[Recap/StevenUniverseS2E28MessageReceived "Message Received"]], [[Characters/StevenUniversePeridot Peridot]] has this reaction as she realizes that she [[spoiler:called Yellow Diamond a clod. To her face]]. Unlike most examples, this is a positive use of this trope.
263** Sardonyx has a sizeable moment of this in [[Recap/StevenUniverseS4E2KnowYourFusion "Know Your Fusion"]], after spending the episode hijacking [[spoiler:Smoky Quartz's]] big debut and comparing them to other fusions, causing [[spoiler: Smoky]] to start taking self-depreciating shots at themself as their insecurity rises to the surface. Sardonyx is so upset by her own behavior that she unfuses on the spot.
264** [[Recap/StevenUniverseS5E19NowWereOnlyFallingApart "Now We're Only Falling Apart"]]: In the backstory of [[spoiler: [[Characters/StevenUniverseRoseQuartz Rose Quartz]], [[Characters/StevenUniversePinkDiamond Pink Diamond]] experiences this when she realizes that her colonization will destroy all life on Earth. This eventually prompts her to assume a new identity and start the Gem Rebellion as Rose.]] Also occurs later in the same episode when Sapphire realizes she left Ruby alone after yelling at her.
265** In [[Recap/StevenUniverseS5E28ChangeYourMind "Change Your Mind"]], [[spoiler: Blue and Yellow Diamond]] have this reaction, after Steven ask them two [[ArmorPiercingQuestion Armor-Piercing Questions]] in separate scenes, prompting them to have [[HeelRealization Heel Realizations]].
266*** The first was "How many times did you make her cry?" asked to [[spoiler: [[Characters/StevenUniverseBlueDiamond Blue Diamond]]]]. [[spoiler:Blue replies she never did that to Pink Diamond... then it slowly dawns on her how many times she actually did, and she's essentially trapped herself in a cycle of hurting Pink. And is doing so again that very moment. This realization finally cements her HeelRealization, making her realize exactly why Pink decided to abandon Homeworld to live on Earth as Rose.]]
267*** The second was "Does this look perfect to you?" to [[spoiler: [[Characters/StevenUniverseYellowDiamond Yellow Diamond]] when she tries to justify attacking Blue Diamond and smashing Yellow's palace as being necessary to preserve the "perfect" Gem Empire. This question makes her realize that the "perfect" empire is fundamentally broken and that her actions are driving away the only people she cares about and ruining her life. This, in turn, causes her to realize why Pink would rather live on Earth in the first place, to break down in tears, and to finally progress to a full HeelFaceTurn.]]
268** In [[Recap/StevenUniverseFutureS1E16Fragments "Fragments"]] (''[[WesternAnimation/StevenUniverseFuture Future]]''), [[Characters/StevenUniverseStevenQuartzUniverse Steven Quartz Universe]] is horrified after he [[spoiler:accidentally ''shatters'' Jasper, and desperately tries to fix her while sobbing that he is sorry]]. He also has this reaction in the following episode, [[Recap/StevenUniverseFutureS1E17HomeworldBound "Homeworld Bound"]], after his apparent attempt to [[spoiler:shatter White Diamond.]]
269* ''WesternAnimation/TeenageMutantNinjaTurtles2012'': After the Shredder returns and almost [[NoHoldsBarredBeatdown kills the turtles]], Splinter [[AngerBornOfWorry fears for his sons' lives]] and thus puts them through weeks of TrainingFromHell [[CruelToBeKind so they'll be ready the next time they face the Shredder]]. This results in the turtles being completely exhausted and paranoid, leaving them more vulnerable than if they'd simply trained normally. Splinter eventually realizes his mistake, and apologizes.
270** In [[WesternAnimation/TeenageMutantNinjaTurtles2003 the previous series]], Raph had this moment when he tried to seriously hurt/kill Mikey after he ticked him off.
271* In the ''WesternAnimation/TotalDrama'' episode [[Recap/TotalDramaSuperHerold "Super Hero-ld"]], Beth and Courtney both convince Harold to vote off Duncan and Leshawna, respectively. Courtney manages to win Harold's vote by using flattery (i.e. complimenting him on that day's challenge) and threats (i.e. saying that he is the first of the male contestants to be voted off). Once Leshawna's elimination is final, Harold breaks down and admits that he was the one that voted her off. Leshawna calms Harold down by saying that she also made a mistake.
272** This happens again in season 4 in the episode "Finder's Creepers", when it's revealed that Brick rushing to finish the challenge first not only forced him to leave his five teammates behind - in a challenge that determines the winner based on how many team members remain - but also caused the Mutant Maggots' first loss of the season. Brick does not take this well.
273--->"No! I should have just followed my own code!!" (collapses in TearsOfRemorse)
274* ''WesternAnimation/WorkItOutWombats'': In "Brother Day", Zeke and Malik plan to have a day where the two of them do fun things together. But Malik makes everything about himself, and didn't let Zeke do whatever ''he'' wanted. When he realizes that he hurts Zeke's feelings, he's heartbroken and sets out to make things right.
275* ''WesternAnimation/XavierRiddleAndTheSecretMuseum'':
276** In "I Am Susan B. Anthony", Xavier and Yadina have this reaction when they realize they've been unfair to Brad by not letting him have a vote on what should go where in the Secret Museum.
277** In "I Am Maya Angelou", Xavier and Yadina get into a sibling spat and say awful things to each other. When Maya Angelou teaches them to use their words for good, the memories of the things they said come back to them, and they realized that they really hurt each others' feelings.
278* ''WesternAnimation/YoungJustice2010'':
279** A HUGE one happened in the episode "Before the Dawn": [[spoiler:Miss Martian, who lately has been VERY trigger happy with the MindRape button, attacks Aqualad and leaves him a drooling vegetable... only during the MindRape, she glances into his memories and realizes that Aqualad never betrayed the team, but was a deep cover mole for both Young Justice and the Justice League, and all the supposed bad stuff he did were actually diversionary tactics to earn The Light's trust. Cue HeroicBSOD.]]
280** Black Lightning has one in the Season 3 premiere "Princes All", when he learns [[spoiler:that the monster he had just killed [[WasOnceAMan was once a metahuman child]]. The trauma from this realization is what drives him to resign from the Justice League in the aftermath]].
281** [[spoiler:This version of Barbara Gordon being in a wheelchair is the result of Orphan, having been sent by her mother Lady Shiva to stop his revenge scheme against the Light, trying to kill the Joker and Batgirl diving in to save the Joker. This horrified Cass to the point she defected.]]
282* The finale of ''WesternAnimation/TheZetaProject'' gives [[SympatheticInspectorAntagonist Agent Bennett]] two of these:
283** One episode has Agent Bennet believe he's accidentally destroyed Zeta and killed Roe. His reaction to this is a guttural, horrified, quiet "no".
284** [[spoiler:He feels a tremendous one when he overhears that Zeta truly does have a conscience, truly does feel emotions, and truly ''is'' a sentient being. He's spent the entire series trying to capture this thing, believing its "emotions" are at best a malfunction and at worst a ManchurianCandidate ploy thanks to a terrorist group that reprogrammed it. Though he doesn't say anything, the expression he makes upon learning that he was wrong and spent all that time hunting an innocent being who just didn't want to kill says it all.]]

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