History MyGodWhatHaveIDone / WesternAnimation

** In "WesternAnimation/DestinationImagination", Mr. Herriman ''immediately'' regrets scolding World when he sees the landscape break down.

** In "Scary-oke", [[Characters/GravityFallsDipperPines Dipper Pines]] has one when he unleashed a zombie horde.

** "A Tale of Two Stans" gives us a twofer; [[spoiler: in the flashback, [[Characters/GravityFallsGrunkleStan 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.]]

* ''WesternAnimation/SheRaAndThePrincessesOfPower'': 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.]]

** In "Bart The Lover" Bart 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.
** Played straight in "When Flanders Failed". Homer, 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.

** Kyle experiences a textbook case of this in "Toilet Paper" after [[FelonyMisdemeanor TPing a teacher's house]].

** Also used seriously. Such as in [[Recap/StevenUniverseS2E14CryForHelp "Cry for Help"]], where at the end of the episode 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.
** In [[Recap/StevenUniverseS2E28MessageReceived "Message Received"]], 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.

** [[Recap/StevenUniverseS5E19NowWereOnlyFallingApart "Now We're Only Falling Apart"]]: In the backstory of [[spoiler:Rose Quartz, 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.

*** The first was "How many times did you make her cry?" asked to [[spoiler: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.]]
*** The second was "Does this look perfect to you?" to [[spoiler: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.]]
** In [[Recap/StevenUniverseFutureS1E16Fragments "Fragments"]] (''[[WesternAnimation/StevenUniverseFuture Future]]''), Steven 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.]]

* In an episode of ''WesternAnimation/AmericanDad'', one of Roger'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]].

** 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]].
** 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.
** Right after yelling at Aang in the episode ''The Waterbending Scroll'', Katara immediately feels ashamed for doing so. The look Sokka gives her plainly says "[[WhatTheHellHero What the heck is wrong with you]]?!"
** 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.

** [[DownplayedTrope Downplayed]]. It appears that 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.
** [[AntiVillain 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.]]

*** In "[[Recap/JusticeLeagueS2E5And6OnlyADream Only a Dream]]", stuck in a nightmare by [[NightmareWeaver Dr. Destiny]], 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.

* ''WesternAnimation/FamilyGuy'' takes a peg from ''Series/ArrestedDevelopment'', after Stewie sends away a babysitter who possibly could've been his soulmate.

** One episode has Peter 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!"

** TheMovie / MiniSeries "Bender's Big Score", when 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.]]

** Yet again, in "Law and Oracle", when Fry discovers he will shoot Bender in the future, parodying ''Film/MinorityReport'':

** In "Scary-oke", Dipper has one when he unleashed a zombie horde.

** "A Tale of Two Stans" gives us a twofer; [[spoiler: in the flashback, Stan and 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.]]

* ''WesternAnimation/HarleyQuinn2019'': Harley 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.

** Arnold felt this when he blinds Helga on April Fool's Day.

*** In "[[Recap/MyLittlePonyFriendshipIsMagicS2E3LessonZero Lesson Zero]]", Twilight Sparkle has this reaction after her insane attempt to create a friendship problem via an AppleOfDiscord [[GoneHorriblyRight goes horribly, horribly, right.]]
*** In "[[Recap/MyLittlePonyFriendshipIsMagicS2E5SisterhoovesSocial Sisterhooves Social]]", 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.
*** "[[Recap/MyLittlePonyFriendshipIsMagicS2E10SecretOfMyExcess Secret of My Excess]]": 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.

*** "[[Recap/MyLittlePonyFriendshipIsMagicS2E19PuttingYourHoofDown Putting Your Hoof Down]]": Fluttershy gets this after being a huge bitch to Pinkie Pie and Rarity, due to taking her assertiveness lessons from Iron Will.

*** In "[[Recap/MyLittlePonyFriendshipIsMagicS3E9AppleFamilyReunion Apple Family Reunion]]", Applejack get this after the Apple family barn was destroyed.
*** In "[[Recap/MyLittlePonyFriendshipIsMagicS3E11KeepCalmAndFlutterOn Keep Calm and Flutter On]]", 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.

*** "[[Recap/MyLittlePonyFriendshipIsMagicS5E26TheCutieRemarkPart2 The Cutie Re-Mark, Part 2]]": [[spoiler: 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]].
** ''WesternAnimation/MyLittlePonyEquestriaGirls'': [[EvilCounterpart 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.
* ''WesternAnimation/MyLittlePonyPonyLife'': While not said, 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.

* Sheen in ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' episode "Sheen's Brain" after [[spoiler:he nearly kills Jimmy and Carl.]]

* ''WesternAnimation/{{Castlevania}}'': 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]].

*** 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 Fry is being sent down for murder,

* ''WesternAnimation/ThePowerpuffGirls'':

** Even [[SpoiledBrat Princess Morbucks]] goes through this in the 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.]]

* ''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 TrainingThroughHell [[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.

* ''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 firs step towards quitting drugs.

* ''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 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, Rick finally realizes that DrugsAreBad.

* 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.

* ''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.

* ''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.

*** ''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.''

** Even [[SpoiledBrat Princess Morbucks]] goes through this in the 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.]]
* ''WesternAnimation/QuackPack:'' Gil goes through this in "Koi Story" when Daisy points out to him that his pet fish Winston is not really happy.

** 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]].]]
** 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."

* ''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.

** One episode has Agent Bennet believe he's accidentally destroyed Zeta and killed Roe. His reaction to this is a gutteral, horrified, quiet "no."

'''Koosalagoopagoop:''' Goodbye, Deedee. You'll never see me again.\\

--->[[EvilLaugh "Bwahahaha! Hahahaha...haha...]] Oh, God! ''What have I done?!?''"

-->"What have I...[[NeverMyFault what have THEY]] [[IgnoredEpiphany done to you]]?!"

** 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; "Ohh, what have I done!? Three miwwion bucks! Shot to pieces!"

-->'''Narrator:''' Oh, dear...what have I done??\\

--->'''Homer''': What have I done? What have I done???\\

--->*Sad violin solo* '''Zoidberg''': What have I DOOONE!!!

* The finale of ''WesternAnimation/TheZetaProject'' has [[spoiler:[[SympatheticInspectorAntagonist Agent Bennett]] feel 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.]]

** 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. The episode was called "His Silicon Soul".

*** In "[[Recap/JusticeLeagueUnlimitedS2E11PanicInTheSky Panic in the Shy]]", 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.

* Franchise/DCAnimatedUniverse:
** An episode of ''WesternAnimation/BatmanTheAnimatedSeries'' 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. The episode was called "His Silicon Soul".
** In ''[[WesternAnimation/JusticeLeague Justice League Unlimited]]'', when [[spoiler:the League's KillSat not-all-so-accidentally fires upon Cadmus HQ]], Franchise/{{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.
** Done earlier in ''WesternAnimation/JusticeLeague'' in the episode "Hereafter" when Superman was 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.
--->'''Superman''': What happens to you?\\
'''Savage''': Redemption, if I'm lucky.
** "[[Recap/JusticeLeagueS2E5And6OnlyADream Only a Dream]]". Stuck in a nightmare by [[NightmareWeaver Dr. Destiny]], Superman thinks he's destroyed Metropolis and killed ComicBook/LoisLane, Perry White, and ComicBook/JimmyOlsen 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.