- Oliver has a moment like this in Out of the Dark, when he gets a call from Barry asking him to look up a woman Barry just saved from committing suicide before he was abducted by Diggle and Felicity to treat Olivers recent poisoning. When Barry reveals that the womans name was Laurel, Oliver is horrified that things with Laurel have fallen so far that he didnt realise she felt so alone that she might consider suicide.
- To Hell and Back (Arrowverse): Malcolm Merlyn had this reaction when he realized that it was Oliver, not Robert, on the Queen's Gambit, where he just had Frank Chen plant a bomb on. While this didn't stop him from taking advantage of the incident to force the Queens under his heel, he still felt immensely guilty for what happened and was relieved when Oliver was found alive ten years later. The feeling returns with a vengeance when he learns he's Oliver's biological father, as this means he had unintentionally ruined his own son's life, which eventually transforms him into a full-on "Well Done, Dad!" Guy.
Avatar: The Last Airbender
- Katara has one of these in The Chong Sheng Trilogy, after going on a Roaring Rampage of Revenge when Jet is tortured and murdered in cold blood right in front of her. She uses said cold blood to literally rip apart anyone wearing Fire Nation armor, even the ones surrendering or running for their lives. It results in a Heroic BSoD that nearly drives her to suicide.
- Avatar: The Abridged Series: When Sokka rails against the Inventor, saying he's a traitor TO SCIENCE! because he is responsible for all of the "Steampunk Nonsense" in the Avatar world, the Inventor tries to defend his claim, saying that steampunk stuff could work and runs on scientific principles. Sokka cuts him off again, mentioning steam-powered jetskis. This leads to the Inventor having a Heroic BSoD while saying the trope word for word at the "horror" he has perpetrated against the world.
Axis Powers Hetalia
- In the doujinshi Besame Mucho, Spain gets one of these (quoting the trope name included) when standing in front of a destroyed house in a village his army just slaughtered. He is passing by when he sees a dead child's arm peeking out of a pile of wreck, and it makes him remember about Romano. Something was in my eye when he says that they just killed people, who were the same as him or little Romano. His companion's answer? "You are wrong. You are not human.". Tear Jerker, indeed.
- Also in an Axis Powers Hetalia fic, this is lampshaded by an authoress in the notes of the first chapter of her intense FACE bondage-dominance foursome. Repeat, the /first/ chapter.
- In yet another Axis Powers Hetalia fanfiction Let me be Your Savior Romano/Lovino has one after stumbling across his brother (Italy/Feliciano) after Romano/Lovino had violently raped him crying, and it finally hits him that what he's been doing is wrong. This scene is a nice breakthrough, seeing as Romano/Lovino had seemed to cross Moral Event Horizon before.
- Just about every fan-written sequel for the controversial Kink Meme story known as the Financial Crisis Gangrape has America's attackers all go through this in varying degrees. Depending on how forgiving or vindictive the individual author is, at least one of the rapist nations either gets Driven to Suicide from their guilt or suffer a massive BSOD.
- Multiple examples in Soviet Insanity. In particular, Belarus when she stabs Lithuania and Russia once he realizes the extent of the psychological damage he has inflicted on his family.
- Clarity is an elderly but senile Beatrice's moment of this, where she realizes how badly she treated her son BoJack.
Narration:She is so, so sorry. Shes struck with fear, suddenly, that she will die without telling him. BoJack will never know that it wasnt his fault. That hell be convinced, for the rest of his life, that hes broken in the way she is. The way she told him he was.
- The Bolt Chronicles: Bolt eventually realizes how callously he has been treating Mittens in The Blood Brother. He tearfully apologizes and is forgiven.
- In "The Beauty and the Tragedy", Booth practically has a panic attack when he learns that Brennan has spent the last month thinking he was legitimately dead when he was actually just undercover, blaming himself for not making sure that shed been informed about the operation.
Buffy the Vampire Slayer
- Xander has two in Emerald Dawn. The first when he realizes one of the kids he shot with an arrow on Halloween died. The second when he overhears demons talking about the Robin Hood type hunter going around killing every demon he sees, including a young couple who left behind a three year old orphan.
- Willow's parents are horrified by their actions in Xendra after the Mayor's death results in breaking The Masquerade. Namely, they can't believe they spent months away from their daughter at a time, to the extent they barely know anything about her or her friends.
- "The Night Remembers";
- When circumstances prompt Willow, Tara and Anya to take a closer look at the ritual that Willow used to restore Angel's soul, Willow is devastated when Anya's translation reveals that this spell doesn't include the clause, as that means that Angel and Buffy could have been together for years and she never realised it (although after Angel confirms that the clause is still intact based on his experience with Rebecca, Tara deduces that a spirit interfered with the ritual to ensure that the clause remained valid).
- When an amnesic Buffy regains her memories of the Day That Wasn't ("I Will Remember You") and telling Angel that she loves and trusts Riley ("The Yoko Factor"), she is initially devastated at the idea that she could be that cruel to Angel until he assures her that she genuinely didn't remember his time as a human before now (her resurrection-related amnesia was just an opportunity for her to regain all her memories, including the lost Day).
- In the Jackie Chan Adventures and Teen Titans crossover fanfiction A Shadow of the Titans, Jade has a reaction like this when she severely wounds Kitten during their battle in the Tournament of Villainesses (to be fair, not only was Kitten really rude to Jade when she was severely outclassed and offered a chance to surrender, Jade, due to her previous encounters with the Titans, etc., expected her to be Made of Iron). Of course, the other villains think her reaction means something else.
- In The Cries of Haruhi Suzumiya, Kyon after he kills Haruhi.
- Fluttershy has this reaction in chapter 10 of Ace Combat: The Equestrian War. She saved Cloud Kicker's life, but believes her actions partially led to Razor's death. She utters the actual quote (without the "My God" part) and until her friends comfort her later on, along with Princess Celestia stating that Razor died in the explosion caused by The Burning Talon's overheating, she is reduced to crying and blaming herself.
- Turnabout Storm: Phoenix says this almost word-for-word towards the end of the first day of the trial after casting suspicion on Fluttershy of murder to buy more time to investigate. Others are not shy on pulling some What the Hell, Hero? on him as well.
- The My Little Pony: Friendship Is Magic fanfic My Little Pony Vs... features the Mane Cast forced into fights to the death against various characters from other media. Rarity and Fluttershy both have this reaction after defeating Toph Bei Fong and Katniss Everdeen respectively.
- Twilight has a mild one after killing a Dalek, if only because she had previously thought it was an robot instead of a living creature.
- Rainbow Dash has one when she realises that her Buccaneer Blaze tore Pikachu to shreds - she had been ready to kill in self defence, but she hadn't meant to be quite so brutal.
- Pinkie Pie has one after beating Taokaka, as the two had gotten on well up until Discord showed up with a horribly inaccurate video of her battle with Lucy.
- In Origins, a Mass Effect/Star Wars/Borderlands/Halo Massive Multiplayer Crossover, Sarah has one for a relatively minor reason (all previous actions considered) when she loses it over the fact that Jackie's reform has been accepted but everyone is (rightfully) suspicious of her. Giving in to her darker impulses, Sarah attacks Jackie, only to break down crying and use her powers to try to undo what she'd done all while chanting "I need help."
- In the Lilo & Stitch/Star Trek crossover Starlight, Jumba undergoes this thrice: first after he loses Lilo to the Borg, then after he accidentally leaves Experiment 426 behind to be apparently flung into outer space, and lastly after he shocks BorgDrone!Lilo to knock her out, during which she writhes in agony.
- Luna in The God Empress of Ponykind has a moment like this after the war against the Crystal Kingdom, when she realizes that she was about to betray her sister. Unfortunately for her, The Corruption takes over her immediately after this.
- In the fanfic Tails of the Old Republic, a crossover/ Fusion Fic between Sonic the Hedgehog and the videogame Star Wars: Knights of the Old Republic, Tails has a very strong Thou Shalt Not Kill philosophy, and he has this reaction after killing the Sith troopers aboard the Endar Spire.
- In the Batman and Death Note crossover Vigilante Light Yagami has this reaction while out on patrol with Nightwing and is horrified by how ruthlessly Nightwing takes down a criminal who was only trying to feed his family. Then Light remembers all the names of criminals he's written in the Death Note.
- Mordin Solus has a truly tragic case in Harry Potter: Geth when he sees Mount Mordin: a massive pile of all the Krogan babies that died after he modified the Genophage to be more effective. It's stated as containing roughly a hundred-twenty million corpses. Jack is horrified and Samara openly states she would kill Mordin if she wasn't under oath.
- In Children of an Elder God, Rei has this reaction when one of the Eldritch Abominations that she absorbed took control of her body and raped Asuka. Even though she wasn't responsible for its actions, she felt guilty about Asuka's pain because she was unable to stop it, and she wanted to be punished by her teammate.
- Guardians, Wizards, and Kung-Fu Fighters:
- In Neither a Bird nor a Plane, it's Deku!, Izuku breaks down in tears after he nearly killed his Childhood Friend Bakugou by throwing him through a wall as a child. His actions haunted him for years and he swears to never become a Hero out of fear of what he could do to others.
Izuku: [ready to sob in his parents' arms] I-I was in the park, and Kacchan, h-h-he was b-bullying someone. I just, I just wanted to make him stop. I just, I just wanted to be a Hero, but then I lost control, and Kacchan. Kacchan!
- In Harry Potter and the Mystic Force, Ron and Hermione experience this when "Cedric" (in reality Ivan Ooze) removes the spell he was using to cloud their minds and they realize how they turned on Harry based on obvious deceptions.
- The Many Dates of Danny Fenton (Danny Phantom Western Animation, TV Series, and Comic Books.): When Danny points out all the damage Katie Kaboom causes during her rampage and that she hurt her little brother, she is visibly horrified.
- In Echoes of Yesterday, Glory Girl freaks out and gets extremely upset when she's said that the "drug dealer" whom she has just crippled is an undercover cop.
Glory Girl looked from them, to the injured cop and then to me. The expression on her face was very familiar; the look of a kid in way over their head and realizing just how badly they managed to mess up in such a short period of time. I felt an eerie sense of deja vu and shook it off.
- SAPR: After spending some time in prison, Sunset comes to the realization that the people of Vale are, well, people, and has this reaction to her actions during the Breach.
- The Chronicles of Tanya The Holy: When Tanya pulls off an absolute miracle and cleanses all of Stratholme, including resurrecting many of the slain, Arthas and his forces are forced to deal with the guilt that the civilians they killed could have been saved. Beforehand, they could at least comfort themselves that their actions were terrible but necessary; now they have to live with knowing they killed thousands of innocents, even if the vast majority were resurrected.
- In Graduate Meeting Of Mutual Killing, has one of these in a flashback. It's shown that Ginchiyo, when she received the letter from Hope's Peak, tried to leave her sister out of the school and pass herself as the receiver of the letter, just to be told that the offer was for both her and her sister. She then hurried back home to tell her, and finds out her sister ran away from home in despair. Ginchiyo tries to atone for years, looking for her sister, and before the Filmmaker's death, she states she believes her sister is dead, as she couldn't find her.
- In Despair's Last Resort, Shizuka Matsuki has one of these upon realizing that she's caused Naomi's death and actively killed Shigeru, and that if she graduates then those actions will be for nothing.
DC Super Hero Girls
- In the Tamers Forever Series, when Chaos first emerges, but before Takato realizes he's a separate entity. From his perspective, he destroyed a significant part of the Internet just by having his Berserk Button pressed. You'd be a bit scared of yourself too.
- This is also Takato's reaction when he uses the Omnivice to remove the pain from Azulongmon's Wind Electricity technique, only to find out that he'd transferred the pain to Rika, Henry, Renamon and Terriermon. His horror, frustration and grief combine to send him over the edge, unleashing the power of ChaosGallantmon.
Dragon Ball Z
- Dragon Ball Z Abridged:
- Dr. Briefs yells "WHAT HAS SCIENCE DONE??" after Goku blasts himself into space on a ship Dr. Briefs built.
- King Kai gets one too, after realizing that sending Goku home has resulted in him being all alone again. When Bubbles, Gregory and Bojack try to comfort him, he tells them to shut up.
- Bulma gets one when she realizes she hit on her future son.
- Goku finally suffers one when he finally realized the great flaw in his Batman Gambit for Gohan — he wasn't a fighter.
The Familiar of Zero
- Derflinger reveals in Enslaved that the reason Brimir died was because in his quest to eradicate the elves, his elven familiar Sasha unknowingly killed her own family. Once she realized what she'd done, she "snapped" and ran Derflinger through Brimir's heart.
Five Nights at Freddy's
- Almost every (if not every) Five Nights at Freddy's fanfic involving the animatronics being good-hearted and realizing that they've been killing people when they stuff them into animatronic suits (not helping exoskeletons get into costume) uses this trope.
For Better or for Worse
- In The New Retcons, after Elly snaps out of her insanity and is confronted by the doctors with what happened to her and what she did to others, she's horrified at her actions, particularly when she reads the letters she wrote while insane, and realizes how much Connie enabled her.
The Green Hornet
- Repeated word for word in the fanfiction Bad Medicine after the OC kills the man who abducted/tortured her in self-defense.
- In The Day He Was Pushed Too Far, Dumbledore, in order to avoid legal repercussions, lets a copy of Harry "die" and gives Harry a new identity after Harry shoots Umbridge and then himself in his fifth year. Harry says "What have I done?" shortly after coming across Neville, who's been dealing poorly with the "loss" of the only person who cared about him, trying to kill himself.
- In Lily's Changes, Voldemort says this almost word for word after eleven-year-old Harry, having future knowledge, convinces him to absorb the soul fragments in two of his Horcruxes, regaining his sanity.
- Percy Weasley has this reaction in Fixing What Has Been Broken after he learns that James Potter kidnapped Harry from the Saint Mungo's nursery when the real Harry Potter died shortly after birth and consequently he'd been vilifying his own brother.
- In Exfriends, Lovers and Brothers Ron, upset about Harry being gay, punches him in the stomach. He has this reaction after learning that he caused Harry to lose his unborn child.
- The Power of Seven: A good description of Fleur's reaction as she finds herself in a position where she is choosing to help Harry over helping Bill, but may arguably also apply to Ginny as she genuinely apologises for her prior treatment of Fleur.
- Happens for more than a few characters in Brutal Harry.
- Aunt Petunia had this reaction when Uncle Vernon's abuse of Harry escalated to the point that he nearly beat the then-nine-year-old boy to death with a golf club, triggering a soul fragment of Lily's that was hiding in Harry to manifest, viciously beat Vernon to a pulp and then call Petunia out on taking her resentment and jealousy out on her completely innocent nephew, promising to really make her suffer if she ever hurts Harry again. Since then, Petunia became The Atoner.
- Dumbledore has both this reaction and I Need a Freaking Drink when he realizes the horrible mistake he made in leaving Harry in the Dursleys' care after hearing about the full scope of the abuse Harry suffered at their hands.
- Professor McGonagall goes through this after Harry calls her out for punishing him for fighting off the troll that almost killed Hermione, pointing out that she might as well have said that he should've just let Hermione be killed just to uphold the rules and that she did not take into account of her students' individual backgrounds before doing so. After this, she makes an effort to loosen up some, so that all her students will actually turn to her for help rather than be afraid of her Stern Teacher tendencies when they have issues.
- Snape goes through this in Chapter 32 of Harry Potter Gets Smart and Takes Control-The Goblet. To summarize, Snape finally undergoes a Jerkass Realization, realizing that his preconceived biases and subsequent treatment of Harry was completely unjustified, as Harry had grown up being bullied and unloved, just like Snape himself had been, and he has become the exact same kind of bully that James Potter was in his youth, if not worse. And due to a set of very unfortunate coincidences, he may have completely destroyed the boy's spirit and completely dishonored Lily's memory and sacrifice, and any chance of atoning for this is extremely slim.
- In the Furnace, both Harold and Sid commit suicide out of guilt for murdering Arnold and Stinky.
How to Train Your Dragon
- In A Thing of Vikings, both Stoick and Bladewit (Fishlegs' clan grandmother) all but explicitly state (Stoick in his own private musings and Bladewit in a talk with Fishlegs) that they had this moment after they learned the truth about the dragons' reasons for raiding Berk and stealing food; both of them are disgusted and horrified with themselves that they have spent their lives taking pleasure in killing dragons who were little more than enthralled children, and take efforts to correct their mistake.
- In Love on the Run, after Needy finally manages to find a cure for Jennifer's condition, Jennifer breaks down crying as she finally feels the emotional weight of the people she killed while possessed.
Kill la Kill
- In Maim de Maim, Nui gets two of these, one is from when she skinned a girl alive to make a kamui and another is after Ryuuko and Senketsu are brainwashed. Ragyou appears to have one in chapter 22 when she shows and appears to be feeling a twinge of regret, during one of the few times she shows genuine emotion.
- In Cellar Secrets, we have this with Ragyou over what the abuse she's put her daughters (especially Ryuuko, to whom she locked in the titular cellar) and secretary through when Satsuki visits her in the mental asylum.
Ragyou: [articulating her regret] "I danced with the devil and I'm so ashamed."
Satsuki: "Did he mention that you'd have to pay?"
Ragyou: "Please forgive me."
- The Outside:
- Ragyou, when she finds out what happened to her girls in her absence
"If I had known any of this were to happen, then I wouldn't have left."
- The biggest example of this occurs with Satsuki in Chapter 48, when we see her POV
"I thought about what got us here and it was then that I realized I had been quite selfish in all of these years. I couldn't live a normal life and, so, I had stolen one from her because I was afraid, afraid the outside world, and afraid of losing her. I wanted to protect her but, in doing so, I lost her. [...] I was sorry. I was sorry for many things but, more importantly, I was sorry for the harm caused by my selfishness."
- Chapter 51 gives Satsuki another one:
"As I mused more on this, I had realized I had been projecting some of that resentment onto Ryuuko, as, in the end scheme of things, she could live a normal life but I had been selfish enough to take a good much of that away."
- Sora in Broken Heroes has this reaction twice: When Ventus dies and he realizes how much of a Jerkass he has been to him, which causes his character to do a complete 180, and when he agrees to become Xemnas's slave (Implied to be Sex Slave) to keep Riku, Kairi, and his other friends safe, which spurs him into adopting the identity of Roxas.
The Legend of Spyro
The Legend of Zelda
Littlest Pet Shop (2012)
- In The Times They Are A-Changin', Zoe is "horrified and ashamed of herself" after she gives Pepper an Eye Scream injury during a fight. She doesn't protest when Mrs. Twombly isolates her from the other pets, since she considers it "an appropriate punishment".
The Lord of the Rings
- In Left, Frodo has two of these. One happens during a dream sequence when he discovers that he killed Sam in a fit of Ring-jealousy. The other happens when he lashes out at Sam in Cirith Ungol and realizes how close he came to fulfilling the nightmare.
- In Moria's Revenge, Haldir has this reaction when he kills Icicle (a warg who befriended the Fellowship) under the mistaken impression that she had attacked Frodo, then learns that she had actually saved him from Gollum, the real culprit.
The Loud House
- In A Dark House Inadequate, the entire family gets this reaction when they realize that the Butt-Monkey treatment they've been putting Lincoln through has driven him to Self-Harm, feeling worthless and ultimately trying to kill himself.
- Lincoln's sisters have this reaction in Syngenesophobia after they beat him so badly that he has to be hospitalized and ends up developing an intense fear of them.
- In Mother's Day, the Loud family and Clyde's parents have this reaction after they accuse him of panty raiding Lori, then learn that he was innocent (Lynn knocked into him, sending him spinning into Lori's room, and a pair of Lori's underwear fell on his head when he banged into her chest of drawers).
- Lincoln's Memories: When Lynn accidentally chips Lincoln's first grown-up tooth, she gets teary-eyed and apologetic at the idea of giving him a lifelong chipped tooth.
- In The Nightmare House, Lynn feels extremely guilty in her nightmare after accidentally beheading Lincoln.
Marvel Cinematic Universe
- Combined with a Heel Realization in Tony's Girl when Wanda is given incontrovertible proof that not only is Tony Stark not responsible for her parents' deaths, but that he (incidentally) killed the two who were and that, by helping Ultron, she was responsible for Pietro's death.
- Steve Rogers has a breakdown towards the end of Agent 13 when he realizes (with some prodding and help from Peggy) how selfish he's being in abandoning his friends (Bucky and Sharon especially) and expecting Peggy to just take him back with open arms without any consideration to how she's moved on with her own life.
- Clint Barton from Take All The Courage feels rather sensitive about Daredevil's perceived ableism and refusal to accommodate Clint's deafness. Then Matt confesses he's blind, and Clint is horror-struck by the understanding that he bullied and let his teammates bully another disabled person over something he couldn't help.
- The Quarian admiralty board has one in the second book of the Uplifted series, when they discover the Nazi concentration camps.
- In the backstory of The Fourth Council Race, the "Six Minute War" ended when a Pakistani ship missed the Indian ship they were fighting and wiped out a colony of fifty thousand.
- American President Andrew Goldwater refuses to join the Systems Alliance note and calls for his fellow Americans to never join. In the following years, his speeches end up radicalizing the country to the point protests over the Systems Alliance have turned into riots. Goldwater attempts to talk both sides down but things escalate into all out civil war eventually leading to the United States of America fracturing into eight different countries.
Mega Man (Classic)
- In Mega Man: Defender of the Human Race, this is Dr. Light's reaction to the Gamma ordeal, and Vickers' when he learns the truth about Bass and his creator.
- Roll gets this in the episode 3 interlude after she brutally dispatches the cosmetic robot from "Electric Nightmare."
- Dr. Wily gets this briefly in the episode 11 epilogue, but soon his rage outweighs the guilt.
- Bass gets a pretty big one in Episode 17, Chapter 6, when he tries to shoot at Kramer, but Dr. Light jumps in the way and takes the blast instead.
- The One to Make It Stay:
- Sins of the Past: Kamala is hit hard with this after Nemesis attacks, as she realizes that she's caused Amacia's akumatization — the first in fifteen years. As if that wasn't bad enough, she's forced to flee the scene of the car crash, seemingly abandoning her parents in the process. (Since she's unaware of her parents' alter egos of Tigerclaw and Pearlescent, the ones who saved her from the wreckage.)
- Miraculous! Rewrite:
- During "Riposte", Hawkmoth frantically tries to stop the akumatized Kagami from going after his son when he appears to be trapped in the sarcophagus, screaming when she lands what would have been a kill shot... had Adrien actually been inside. Afterwards, he vows to himself that he's never going to akumatize her again.
- After she's healed, Ondine grapples with the heavy knowledge that while she was Syren, she seriously wounded and nearly killed Adrien, on top of everything else she did while transformed. Kim sits down and talks her through it, drawing upon his own experience as an akuma as well as being her merman partner.
- Following Style Queen's stint, Gabriel goes into a full-fledged Villainous Breakdown, declaring that the fact his son has been critically endangered thrice now is completely unforgivable, and giving up his crusade.
My Hero Academia
- In Bloom in Winter, Izuku gapes in horror when he realizes that the information he spouted to his father's coworkers earlier had been used to critically injure a rising hero. Then he's forced to analyze other heroes to find their weaknesses, which makes him feel just as responsible for their maiming and/or murder as the ones who actually did it.
- In Karma in Retrograde, Ryouta, an aspiring hero student, is horrified to learn that he grows up to become the murderous villain Dabi. He's even more shaken when he learns that he was willing to attack his youngest brother.
- Izuku is struck by this in The Emancipators after he successfully tricks Monoma into copying and using One For All. He did so deliberately banking on the idea that the Quirk would be too powerful for him, and would hurt Monoma when he tried using it, but upon seeing the results, he's shaken. Not by the carnage, but at his own detachment from it — and the fact that on some level, he's actually pleased to see how much pain he's in. Despite his desire for vengeance, he's not so far gone that he's unable to recognize that his reaction is abnormal and unheroic, and his secret shame over this only intensifies as Toshinori attempts to comfort him afterwards, unaware of what's really going through his protégé's head.
- Todoroki is horrified in The Emerald Phoenix when he loses his temper and lashes out with a massive amount of ice during the Heroes vs Villains exercise. Even with his quick action melting the ice, he still badly injured his classmates, including breaking several of Camie's ribs. Afterwards, the one thing keeping his reputation above Bakugo's is that he obviously didn't intend to go as far as he did and was disgusted with himself.
- In The Undead Schoolgirl: Dead Pulse, Bakugo breaks down crying when he learned Izuku actually did commit suicide. All the times he bullied her over the years were an attempt to keep her safe by making sure she didn't try to become a hero without a Quirk. Bakugo has another instance earlier when he realizes the explosion that killed so many people was caused by him trying to get free of the Sludge Villain.
- Three Guys Go to a Bar (And Then They Beat You With It):
- When Shinsou transfers into their class after Mineta is expelled, Oijiro's grudge over what happened at the Sports Festival rears its ugly head, festering until the two of them are paired together to spar. His anger leads him to break two of Shinsou's ribs, along with his arm. Upon seeing what he'd just done, Oijiro is immediately remorseful; however, this doesn't stop Shinsou from holding a grudge of his own against the 'fuck kangaroo'.
- Aizawa begins to realize that pairing Bakugou, Shinsou and Tokoyami together for the 'trial run' might have been a bad idea after seeing how the first two snipe at each other during a meeting.
- After witnessing how Hitoshi's mother treats him, Katsuki immediately reveals what he's learned to Aizawa over Hitoshi's furious, desperate protests. After learning more about the situation, he has a Downplayed moment of this — while he still feels that Hitoshi needed help, he didn't intend to effectively orphan him, as he wasn't aware of the full situation. Namely, that his father was in jail for abusing his Quirk, which caused victims like his mother to develop schizophrenia.
My Little Pony: Friendship Is Magic
- Sakura has one in Legacy of the Rasengan: Naruto after Naruto rips her apart for stealing his tin of personally created jutsu. Actually a Delayed Reaction when certain facts hit her. In order: A)Naruto spent YEARS creating his jutsu for HIMSELF. B)She stole from him. C)The reason they have Uzumaki Family Scroll on them is because Naruto is an orphan and wanted to pass on something to his kids.
- A Mother's Love: Fire and Blood: The Third Hokage for pretty much screwing Kushina and Naruto over (The Third made it so their lives would be miserable) and letting them get kicked out of the village. The village has one years later when they admit that kicking out them out was a dick move on their part since ''The fox in the desert'' might return for revenge.
- Sasuke gets one in NBH when she gets captured after trying to defect to Sound. Not only does she have no hope of killing Itachi anymore (even if she was allowed to remain a ninja, Ino destroyed her Achilles tendons), but she once more lost everything; this time because she threw it all away herself.
- In Echoes, Kazama has one after he burns down most of Konoha, and realizes that while he got his revenge on the Inner Council, he had hurt thousands of people who didn't even know him, on top of his friends in the Konoha 12, several of which he killed.
- In Vapors, because she is a self-insert original character into the Naruto world, Aiko holds herself responsible for every bad thing that happens in the story. Tsunade also has one of these, when she realizes that giving Aiko insufficient support during her mission to infiltrate Root, followed by handing her a student who would be at risk from Danzo, put Aiko in a position where she had to kill one of her teammates in cold blood, despite the man trusting her to help him.
- Kurama has one in Played to Death when he realizes how much going along with Naruto's idea to make videogames real has damaged the boy. As he explains to Hana, he can barely get the boy to go outside as Naruto honestly prefers being in places where everything is trying to kill him to being in the village. As a result, Kurama outright begs Hana to give Naruto something, anything, to live for.
- Kurotsuchi in Eroninja was tasked with killing D (an enhanced shadow clone of Naruto's) because he was inadvertently ruining Iwa's plans to take over Fang country and Claw country. Unfortunately for her, she learns he's not taking advantage of the situation like she'd hoped but is just an honestly nice man. Furthermore, she ends up In Love with the Mark and he easily accepts his death. As a result, she's haunted for months afterwards, unable to sleep and freezing up any time she might have to take a life.
- A Case Study in the Sturdiness of the Rookie 9:
- Kakashi gets hit with this when he learns that sending Team 7 (Shino, Sakura, and Choji) to spy on Genma as petty revenge has inavertibly taught them to betray their fellow Leaf Nins for their goals, which they do by tricking Team 10 (Naruto, Kiba, and Ino) in order to steal their scroll during the Chunin Exam, leading to chain of events that let Orochimaru place a Curse Mark upon Kiba.
- Choji later comes to the same conclusion after Shikamaru makes him realize that he betrayed one of his childhood friends just for a test.
- Asuma earlier allowed Ino to use her Mind-Possession Jutsu to keep Naruto and Kiba from fighting. But constant use has weakened the durability of Kiba's mind, making him more vulnerable to Orochimaru's Curse Mark.
- Naruto in Am I worthy to love you? becomes horrified and is overwhelmed with guilt when he learns that his actions and words added fuel to Sakura's depression and drove her into attempting suicide.
- In Accidental Companions, the rest of Team 7 realize too late how badly theyve messed up.
- In Kakashi's case, he realizes that Naruto was trying to ask him for help and that the latter was sick the whole time, along with that, due to finding him annoying, he failed to help him.
- After a prank, Sakura realizes how much that prank really hurt him, especially since she remembered that she never even apologized.
- After beating him up, Sasuke realizes why Naruto didn't want to fight him. When he goes to see him at the end, he finds an empty hospital room.
- In Legend of the Blind Ninja, many of the Konoha villagers that harassed Naruto did not take the information about his heritage well, as theyve been harassing a person who is essentially royalty. Sakura deserves a special mention as she had a Jerkass Realization about her treatment towards him a few chapters earlier.
- Exploited by Obito in Son of the Sannin. First, he uses Kotoamatsukami to brainwash Naruto so he turns himself to Akatsuki quietly, forcing Sasuke to fight to stop him. During the fight, Sasuke stabs Naruto (non-fatally) with his sword and sends him an electric discharge, hoping that it'll break the brainwashing out of him. Obito then starts acting like Sasuke killed Naruto, so that the trauma awakens his Mangekyo Sharingan to take from him.
Neon Genesis Evangelion
The Office (US)
- Happens for several characters in the fanfic Insouciance.
- Erin gets hit with this when she's made to watch a clip from the in-universe documentary showing her mistreatment of Jessica, realizing that she was a hypocrite for demanding that Andy accept and "get over" her choice to be with Pete when she wouldn't do the same for him.
- Pete himself gets hit with this when he sees that his handling of the way his and Erin's relationship began, being "the other guy" in Erin's Your Cheating Heart situation, led to his family being targeted for harassment by some angry Internet denizens.
- In a "deleted scene", Nellie is similarly hit with this when she realizes she was essentially directly responsible for the horrific Internet harassment Erin and Pete suffered through because she helped get them together.
- In This Bites!, this is Cross' reaction after he kills the Kestia before it can bite Nami.
Percy Jackson and the Olympians
- In Broken Bow, Artemis breaks down after The Reveal that Armani is her (immaculately born and conceived) son. This only gets worse when she accidentally lets loose the arrow she had aimed at him.
- In The Dark Side Of Innocence, Mondo has this occur twice: The first time was after he left his friend Lana to die after being attacked by a Persian and the second time was when he learned that Giovanni had a son (implied to be Silver's anime counterpart) who is now an orphan after Mondo was involved in his father's death. Both instances caused him to have an existential crisis and led to him becoming depressed and cynical.
- Pokemon: Shadow of Time;
- Ash blames himself when a Cleffa's family are killed by a rockslide during a battle with Team Rocket.
- After Anabel meets Jigglypuff at Oak's lab, she assures it that she understands it was corrupted by Shadow when it killed her, but Jigglypuff still feels guilty.
- Apparently Giratina hides in the Distortion realm because it blames itself for the circumstances that led to the creation of Shadow Pokemon.
- Team Cipher member Lovrina starts to realise the scale of her team's evil after talking with Kyoji.
- Pokémon Reset Bloodlines: During his second interlude sidestory, Ash's Butterfree delivers a No-Holds-Barred Beatdown on a female Vivillon who challenges him during an impromptu fight club. At the time he was angry for being reminded of his lost mate and wanted to vent on someone, but after going overboard, the other Pokémon call him out on beating her up so badly and attacking her after she gave up. He's naturally horrified when he sees how badly hurt he left her.
Romance of the Three Kingdoms
- Farce of the Three Kingdoms:
- Cao Cao has a moment like this after Big Xun commits suicide after his nudging.
- Liu Bei also appears to react like this after executing Liu Feng, but he refuses to admit it.
A Song of Ice and Fire
- In Robb Returns, this is Theon's reaction when Robb tells him what he did in the original timeline, namely his attack on Winterfell and his murder of Bran and Rickon (Robb didn't know that the two had managed to escape).
- Less intense from Eddard, who realizes he did Robb a great disservice by not teaching him the politics involved in being the Lord Paramount of the North.
- In who else can take all your blood and your curses?, Robb has to use his Healing Hands on Theon to save him from a nasty case of literally split personalities. Then Theon confesses he can't remember anything about his blood family, which utterly horrifies Robb.
Sonic the Hedgehog
- In Blast to the Past Princess Elise managed to prevent the Metarex from changing the past, (without Eggman, they'd have no competition, and most likely none of the events of the Sonic games would have never happened) but latter finds out - much to her shock and disgust - that she was the one caused the events that started it all, something that was just as bad when Sonic was killed because of "That damned demon within her." Silver and Blaze managed to convince her that Sonic played an important factor in everyone's lives, almost the same way that Eilse convinced him.
- In Episode 74 of Sonic X: Dark Chaos, Tsali's core systems are damaged in the previous Episode, causing his programming to become scrambled. Because of this, the programs preventing him from feeling regret or remorse for his crimes are disabled. When he and the heroes find out Maledict had been manipulating him from the beginning, he completely breaks down into a sobbing wreck as his systems starts going into full Logic Bomb meltdown - and the horrors he unleashed come back to him.
- Knuckles has one of these at the end of Episode 73 after setting Tails on fire to destroy his Shroud form, and nearly burning Tails to death when it changes him back to normal.
- After months of training, Vader finally succeeds in turning Luke into a Sith in The Shadow, only to realize shortly afterwards how much he truly hates the idea. He ends up recruiting Leia (who's become a Jedi) in order to save Luke from the Emperor.
- To be exact, Vader/Anakin has a My God, What Would I Have Done? moment in Eros Turannos, when he realises that he was genuinely considering raising his own twin children to be Sith even for a moment.
- In Whisper Your Weakness, Luke is kidnapped, brutally tortured and ultimately raped by a Mad Doctor over the death of the doctor's father on the Death Star. Luke is broken and catatonic by the time he's rescued, but when the doctor, Victor Berdin, tries to attack the group of rescuers, Luke comes awake, stands up and uses the Force to squeeze Berdin's heart in his chest until it literally expodes. But almost immediately, he reacts with a horrified "what have I done?" before hiding once again within his catatonic state. Even after everything he endured at Berdin's hands, he still hated himself for what he perceived as giving into the dark side to kill the man. It takes a lot of reassurance from Mara, Leia, and the ghost of Anakin Skywalker to get Luke to accept that he was acting only to defend himself and his friends from a depraved man who nearly killed him, and that it doesn't mean he's slipping into darkness.
- Blue Diamond in Fractures comes to this conclusion after she finds that Pink Diamond has more or less gone completely catatonic after they shattered every last one of the Crystal Gems right in-front of her to teach her a lesson, missing the lovable, innocent, mildly obnoxious Pink she used to know. Yellow is in denial of this until long after White Diamond is shattered, finally seeing the scars her fellow diamonds have inflicted on her, being reason enough to allow her to leave Homeworld without protest.
- In The End of Ends, the Titans, Doom Patrol and Terra have this reaction upon finding out about Beast Boys death. And soon Count Logans true identity.
- Total Drama What If Series In the disaster challenge, Cameron gets his body injured by Chef since he threw a book at him. Sammy feels bad about this since she helped him across the wall.
- In chapter 82 of Gensokyo 20XXV, it was noted that, after she stabbed Yume Ni with a pair of scissors in a fit of rage, Reimu expressed remorse for her actions, recognizing it as something she shouldn't have done.
- Earlier in the series, 20XXI, Ran and Kanako have both have this at different times. Ran has this when Reimu takes a horrible fall and loses the function of her legs while she was being negligent, while Kanako has this when she thinks she may have caused Sanae's death, after having been abusing her for some time.
- Tales of the Undiscovered Swords: After Tsurumaru accidentally injures a suicidal Nikkō, he, Hasebe and Nansen, who have been working together to bring him down, shed tears of remorse for him. Nikkō goes Shinken Hissatsu at this.
- Kiriha is so depressed by having to engage in a bloody fight against his brother Ishida in order to stop him from killing the saniwa he decides to spend the rest of his existence in a blanket closet and blame himself for manifesting a human form and bringing trouble to the Citadel before he presumably gets dragged out off-screen to be sent on kiwame.
- In the WarCraft II shrine, Benamin decides to teach the high elves of Quel'Thalas a lesson by purposefully allowing the Orcish Horde to invade and sack their kingdom. The Princess of Kalimdor angrily calls him out on it and he recoils in horror when he realizes how callous he allowed himself to be.
- All Guardsmen Party: When Doc runs away from a Flyrant, letting Sergeant Gravis get bisected (two thirds of the Inquisitorial Council ruled in his favor saying that his continuous shooting was an attempt to distract the Flyrant), the DM makes a roll and decides that Doc got an obsession with keeping the Marine alive. This manifests in the story as Doc becoming utterly determined in keeping the Marine alive until he got full medical treatment. (Though he does eventually lose the Marine's legs.) Gravis lives long enough to get put into a Dreadnaught.
- In Cenotaph Taylor seeks revenge on Bakuda and the greater ABB for murdering her father. Over the course of an arc and a half she carefully tracks Lung and Bakuda down, then sets off Bakuda's own grenades in her workshop with both Lung and Bakuda in the blast radius. Little did did she know- Bakuda built in a deadman switch tied into several thousand bombs implanted in both gangmembers and kidnapped civilians in the event she was killed. Taylor doesn't find out until the next day, while enjoying a social breakfast with 'James' and Lisa. She... doesn't take it well.
- In The Return-Remixed, Maria Kanellis has this reaction after other members of DEAR triple-powerbombed Eve Torres on the cement floor of the arena and spends the rest of the story feeling guilty, but not sure what to do. Near the end, she plans to get herself eliminated from the climactic battle royal first so someone from the Diva Army will win.