->''One death has already been attributed to the Glow Cloud. But listen, it's probably nothing. If we had to shut down the town for every mysterious event that at least one death could be attributed to, we'd never have time to do anything, right?''
--> '''Cecil Palmer''', ''Podcast/WelcomeToNightVale''

A character who is conditioned to accept a rather horrible, disturbing fate in life does so with a smile on their face. Why must they engage in this SenselessWasteOfHumanLife? As it turns out, they've been conditioned for it. Literally. Their life, memories, and personal experiences have all been deliberately designed so that they genuinely enjoy, understand, and accept the macabre world they've been placed in, even as people from a different context are terrified just ''observing'' them.

This is a very cerebral trope, as the ability of a person to accept such gruesomeness as commonplace and accept their fate without thinking about it raises a lot of questions about the human condition. Don't be surprised if some authors try to sidestep the issue entirely by having the heroes "educate" the conditioned target as to the right way of thinking.

For specific character types, the BarrierMaiden is sometimes trained this way to get them to accept their job. The ApocalypseMaiden might be told they need to be sacrificed so that they don't, y'know, bring about the apocalypse. Sometimes overlaps with FaceDeathWithDignity, this person often seems to be a MartyrWithoutACause until the reasons are explained (and sometimes even after).

A common component of TrainingFromHell and TheSpartanWay. Overlaps with LetsMeetTheMeat when the horror part comes from a food source being sentient. Can be part of a CrapsaccharineWorld. Compare with EpiphanicPrison and SafetyInIndifference.

See also BlankSlate, NurtureOverNature, MoreThanMindControl, RousseauWasRight, StockholmSyndrome and ThenLetMeBeEvil

----
!!Examples:

[[foldercontrol]]

[[folder:{{Anime}} and {{Manga}}]]
* ''GunslingerGirl'' used this as an early conceit. The girls are very sweet and can pass for normal in public, but they cannot comprehend the idea that there's anything morose or negative in the fact that they must kill people on command, most of the time without knowing why. This is best summed up in an early story where Rico realizes she must kill a busboy she befriended earlier because he's a witness. At first it seems like she's hesitating for human reasons, but it turns out that [[spoiler:she was trying to remember the words "I'm sorry". That she had to kill him was never a doubt in her mind]].
* Rei in ''Anime/NeonGenesisEvangelion''. Her character relationship arc with Shinji is based largely on how he questions why she feels this is necessary. Mostly it's the fault of Shinji's dad.
* Hansel and Gretel of ''Manga/BlackLagoon'' end up as CreepyTwins due to this trope.
* The main character of ''PandoraHearts'' can accept anything life throws at him death, being thrown into an extra-dimensional hell/prison, stuff like that. Most disturbingly, he actually conditioned ''himself'' into this as opposed to the usual premise of it having been performed by morally dubious characters. Naturally, this creeps the heck out of his friends.
* [[DarkMagicalGirl Fate Testarossa]] in the first season of ''MagicalGirlLyricalNanoha'' seemed to genuinely believe that [[EvilMatriarch her mother's]] abuse of her was a good enough substitute for parental affection, because she has never actually experienced the latter ([[spoiler:other than in Alicia's memories]]). So much, she even defended her mother's actions to her familiar Arf.
* [[spoiler: Hibiki]] from ''BloodyMonday Season 2'' is perfectly understanding about the possibility of dying and being replaced because [[spoiler: not only has she been trained to be a perfect agent since childhood, she also has seven identical clones and ''all'' of them were specifically bred for spying.]]
* The "normal" people from [[spoiler: Miyu's homeworld]] in ''FateKaleidLinerPrismaIllya''. Illya comes to this realization when she realizes both of them automatically go "people can't fly" despite the magic they've seen. "The Ainsworths have taken their wings."
[[/folder]]

[[folder:{{Comics}}]]
* In ''ComicBook/{{X-Men}}'', Bella Donna Boudreaux was raised to be a professional hitwoman, from at least the time she was eight years old, and possibly younger. As a result she has no qualms about committing murder.
* ''Comicbook/KickAss''' 'sidekick' Hit-Girl has no qualms about vigilante murder and even killing mooks for money. She has been trained by her father to be a killing machine [[spoiler:because he wanted a more exciting life]].
* In Franchise/{{Batman}}, the hitman Cain has raised his daughter [[ComicBook/{{Batgirl 2000}} Cassandra]] from an early age to be nothing but a killing machine. In fact, it was his intention that violence and martial arts be the only language in which she is fluent, and she is, for all intents and purposes, mute.
** While successful at making her into a nigh-unstoppable fighting machine, Cain's regimen actually backfired massively when it came to conditioning Cass psychologically. The first time she killed someone her abilities meant she could 'read' all the target's emotions as he died, making the experience even ''more'' traumatizing than it would be for a regular 6-year-old. She converted to ThouShaltNotKill on the spot.
** Batman's own son Damian, who was raised by the League of Assassins and conditioned to not only kill but to enjoy killing.
* ComicBook/{{Raven}} of the ComicBook/TeenTitans is an ApocalypseMaiden who, since birth, was trained to seal away her emotions, despite the fact that she was an [[TheEmpath empath]] who thrived off other people's emotions.
[[/folder]]

[[folder:{{Fanfiction}}]]
* In ''FanFic/AeonEntelechyEvangelion'' Asuka was desensitized to sanity losing situations AcquiredPoisonImmunity-style as a part of her pilot training.
* In ''FanFic/AndIfThatDontWork'' Asuka is subjected to operant conditioning to keep her functional after [[spoiler: being burned by acid down to a "[[Series/{{Dexter}} screaming potato]]" and then rebuilt as a cybernetic [[HalfHumanHybrid human-Evangelion hybrid]].]] She happily notes that she doesn't get nightmares about it, ever. The alternative was admittedly a ''lot'' worse, however.
* In [[http://www.mediaminer.org/fanfic/view_ch.php?id=19769&cid=49552&submit=View The Legend of Link: Lucky Number 13]], Link claims to have had the fear beaten out of him by his horrific lifestyle. He also admits that while such "mundane" things as ''pitch black pits and waves of blood'' don't scare him, the thought of losing his loved ones most certainly does.
** He invokes this effect by [[TrainingFromHell basically torturing]] a small group of knights into fearing nothing but ''him'', to make sure they wouldn't give up or freak out in a life or death situation.
** The goddesses themselves also invoke this trope UpToEleven by [[spoiler:putting Link's mind through the ''[[VideoGame/TheLegendOfZeldaOcarinaOfTime Ocarina of Time]]'' adventure 98,000 times during his [[GroundhogDayLoop four]] seven-year sleeps. It's borderline AndIMustScream, in a way.]]
* Light in ''FanFic/NoHoper''. [[spoiler: [[FreudianExcuse His mother was killed gruesomely in a vampyre attack right in front of him when he was very young]]]] and then this is reinforced at the testing facility with [[WeHaveReserves the staff's casual attitude when most of the test subjects die.]]
* In the ''VisualNovel/UminekoWhenTheyCry'' AffectionateParody ''FanFic/SillyHatProductions'', Battler notes early on that he's gotten used to Beatrice's games. He then goes on to claim they're not as effective anymore.

[[/folder]]

[[folder:{{Film}}]]
* Franchise/{{Rambo}} in ''Film/FirstBlood'' is particularly notable in that he realizes he's so conditioned to accept horror that he doesn't actually have any idea what he's supposed to do with his life now that the war's over. The entire premise of the movie is pretty much him demanding an answer to this question and not getting one. Later movies "solved" this problem by tossing Rambo into typical action movie plots against AlwaysChaoticEvil nemeses. [[Literature/FirstBlood The original book]], by contrast, ended with Rambo killed as a result of his inability to adapt.
* The first half of ''Film/FullMetalJacket''. Some might say that Kubrick depicted this trope a bit too well.
* ''TheHunted'' featured a character who was trained to be proficient in close-quarters knife assault tactics. This type of assassination is very emotionally taxing, and combat training comes with it conditioning to help make close-range murder easier on the psyche. The main conflict in the movie comes when the main character, having gone through this training, is utterly unable to relinquish violence and reintegrate into the world.
* In Film/{{Soldier}} the SuperSoldier squad is forced to watch a pack of dogs attacking a wild boar as children during their training.
* Downplayed in ''Film/TwelveYearsASlave.'' We see slaves on the Epps' plantation quietly working together as the screams of fellow slaves being whipped fills the air -- there's no delight in hearing such sounds, there's just acceptance, and the knowledge that if any of them so much as move to give water, they'll be next under the lash.
[[/folder]]

[[folder:{{Literature}}]]
* ''Literature/NineteenEightyFour.'' The [[CrapsackWorld whole world]] has fallen below the DespairEventHorizon yet the people have been conditioned to accept the fact and just live their drab lives worshipping Big Brother or not giving a shit about politics despite trying to survive in such a suicide-encouraging hellhole plagued by constant and immutable war, poverty and paranoia, with the Party members getting the worst of it, thanks to the corrupt BigBrotherIsWatching regime. Also, if a Party member even ''thinks'' of going against the will of Big Brother, he is ''[[FromBadToWorse even more]]'' conditioned to accept horror via {{Room 101}}. O'Brien even openly admitted that only pure power is what keeps the {{Dystopia}} alive and the future is pretty much "a boot stamping on a human face forever".
** Winston is subjected to a little piece of personal horror when he recalls how he walked through a district that had just been hit by a bomb, and casually kicked a severed human arm into the gutter as though it were a stone or a piece of debris.
* ''Literature/NeverLetMeGo'' has this as the central tragic plot point. As terrifying as the fate of the Hailsham students is when it's finally revealed to the reader, it's not particularly remarkable to Kathy, who mentions it casually while talking about something else. It genuinely doesn't even occur to anyone that they could do something else with their lives.
* ''Literature/BraveNewWorld'' has an entire society of people who don't engage in any meaningful intellectual thought, or for that matter, much of anything. Aside from the few characters intelligent enough to realize how blithe all this is, everyone seems to enjoy it. A part of this conditioning is taking small children to the hospital of dying, and giving them cookies every time someone dies.
* [[DiscussedTrope Discussed]] in ''Literature/TheLordOfTheRings''. The Hobbits wonder why the horses of the Ringwraiths don't exhibit the nerve-racking dread that all other living things that encounter them do. The answer is that the horses were raised in Mordor and quite simple, are used to it. The movies give them RedEyesTakeWarning, implying a more supernatural explanation there.
* ''Literature/TheRestaurantAtTheEndOfTheUniverse'' features food that's been [[strike:conditioned]] bred to [[LetsMeetTheMeat want to be eaten]]. Arthur Dent, being a normal human from Earth rather unused to this, is a little disturbed.
* Bethan, the sacrificial maiden from ''Discworld/TheLightFantastic''.
* In ''TheGiver'', people who work with the very young or the old are conditioned to accept [[spoiler: euthanasia]] as a fact of life, starting from their early adolescence.
* In ''Literature/TheSparrow'', the Runa are conditioned to serve the Jana'ata. [[spoiler:In every sense of the word. Including [[ToServeMan the Twilight Zone sense of the word]].]]
** After some jarring injustices, one of the humans teaches the Runa the old Earth adage of "We are many, they are few". The Jana'ata that are there to hear this being chanted, understandably, flip out and try to pull a TotalPartyKill; their entire civilization hinged on the Runa never making that connection (the Runa outnumber the Jana'ata population something like 10:1 at least, even if they are pacifist herbivores).
** [[spoiler: In the sequel ''Children of God'', the Jana'ata's fears are proven exactly right and they are almost hunted to extinction by the Runa.]]
* The BigBad in Stephen King's ''Literature/{{Desperation}}'' tries to scare Johnny Marinville by showing him his blood-dripping penis, but it doesn't work because he saw far more disturbing things in Vietnam.
* Many of the Calla from ''Franchise/TheDarkTower'' series have come to accept how the Wolves take away one twin from each pair, and return them in a mentally and physically damaged condition. Granted, this is more likely to be true among those Calla whose own children are too young or old to be taken.
* In a more short-term manner, Basini in ''Literature/TheConfusionsOfYoungTorless'' regards what his classmates do to him with a childish acceptance. It isn't clear whether this is due to real innocence, because he is genuinely complicit in it, because the way in which they frame their advances and "experiments" has eased him into accepting them as okay... or [[FridgeHorror because he has been abused before.]]
* In LoisMcMasterBujold's book ''[[Literature/VorkosiganSaga Mirror Dance]]'', the clone Lily Jr. knows and agrees with the notion of being killed to give "my lady" a full body transplant.
* Cowslip's warren in ''WatershipDown'' is managed by a human. In return for a daily delivery of garden scraps, the rabbits all pretend not to know that the area is full of snares and have convinced themselves that rabbits must await death with dignity and stoicism. The protagonists escape, taking a DefectorFromDecadence along with them.
* In ''Literature/TheHungerGames'', an entire subculture exists of people who select, groom, and train the "tributes" for the eponymous games. In the first book the main character's team is nothing but friendly professionalism. In the second, they start to break down...
* In the ''Literature/DeliriumSeries'', youth are conditioned to believe that love is a deadly disease, and the only cure is brain surgery to remove the part of the brain that causes love. After the surgery, most people have a LackOfEmpathy, and in extreme cases hate or kill their children because they can't feel love.
* The WheelOfTime treats horses enough like minor characters that it's important if they've been trained to not panic in fights against Trollocs and Myrddraal.
** To a lesser extent, recruits and even soldiers occasionally break before those horrors.
** The main characters themselves. In their first encounter with an enemy, [[spoiler: Perrin and Egwene]] hid in a hole. By the end of the series, they were known to charge {{Eldritch Abomination}}s and armies on their own. [[spoiler: Rand]] panics the first time he ever sees Trollocs, and by the end of the series he's annihilated armies of them on his lonesome, killed [[TheDragon Forsaken]], and fought the Dark One himself. [[spoiler: Mat]] hates fighting throughout, but he secretly enjoys commanding some of the largest battles at the end of the series.
** The Borderlanders and the Aiel - lifetimes of wars do that to you.
** Aes Sedai have this as a professional requirement and a product of their membership tests. Some of them do it much better than others. [[spoiler: Egwene]] Sedai and Cadsuane Sedai are known for having absurd control of themselves. Others such as [[spoiler: Nynaeve]] Sedai are known to have poor emotional control even though they're highly capable.
[[/folder]]

[[folder:{{Live-Action TV}}]]
* Connor from season 4 of ''Series/{{Angel}}'' grew up on a demon world, so he's used to all the horrors. Specifically, when Jasmine showed up everybody saw her as beautiful, until they were exposed to her blood at which point they saw [[http://buffy.wikia.com/wiki/File:Jasmine.jpg her true form]] (NOTE: {{Squick}}y in an OK for TV sort of way), which Connor still described as beautiful.
** Mind you, that may be because he considers her to be his daughter (it's complicated) rather than because he actually likes her appearance.
* And while we're in Whedonverse, [[BuffyTheVampireSlayer Sunnydale, CA]] is a town where the valedictorian(ish) can declare, "I am proud to announce that the class of '99 has the lowest mortality rate in Sunnydale history!" and get unironic cheers. Buffy also [[LampshadeHanging lampshades]] this as it becomes more and more absurd over the years.
* The jadedness with which Dr. Brennan and her team respond to extreme gore and decomp gets thrown into sharp relief on ''{{Bones}}'', each time someone unaccustomed to such things, like Sweets or a guest star, walks in on a forensic examination in progress. Early on, Brennan's own clinical detachment when discussing violent murder occasionally invoked this trope even for her own colleagues.
* In the ''Series/StarTrekTheOriginalSeries'' episode "A Taste Of Armageddon", the entire ''planets'' of Eminiar VII and Vendikar are like this. To wit: The planets have been at war with each other for over five hundred years using computers to calculate supposed attacks on each other. The people calculated to have "died" in these attacks are given twenty-four hours to report to what are essentially Suicide Booths, leading to thousands of people all the time willfully committing suicide ''en masse!'' Even worse? When Kirk tells them this is wrong, the leader of Eminar VII says ''he's'' the barbarian, offering the argument that a real war would kill more people and destroy civilization generally.
* Implied to be the case with most of the main cast of ''Series/{{Fringe}}'', to the point that it's been lampshaded by the characters at least twice.
* The characters in ''Series/CriminalMinds'' are as conditioned to the horrifying depths of a depraved individual's mind as any character in a forensic show is to blood and gore...
** ...although they have to deal with that as well. There was an episode in which a murder took place on a Native American reservation and the Sheriff was initially a suspect. Gideon ruled him out after watching him give his own take on the crime scene. Like the killer, the sheriff was unfazed by the gruesome scene, but if he ''were'' the killer, he would have feigned disgust.
* PlayedForLaughs somewhat in ''Series/{{Friends}}'', when Chandler goes to Joey's tailor, who he's been going to his entire life. The tailor feels him up while measuring him, and when Chandler tells Joey, Joey claims that that's how tailors get the correct measurements. It never occurred to him that tailors weren't supposed to borderline molest you when they took your measurements.
[[/folder]]

[[folder: TabletopGames]]
* ''TabletopGame/{{Exalted}}'': While the ''Abyssal'' sourcebook is full of horrifying things, The Dowager of the Irreverent Vulgate in Unrent Veils takes the cake for invoking this trope. She raises children to be her Abyssal Exalted. She teach them "the pointlessness of existence and hatred for the cruelty of life". The place she raises them, the Mound of Forsaken Seeds? No normal animal nor Fair Folk will get near it without magical compulsion.
* In ''TabletopGame/{{Paranoia}}'', this happens with some citizens of Alpha Complex. Work as a janitor mopping up in the Internal Security Information-Extraction chambers, and after a while you've seen it all..
* The 'Jaded' Trait in ''DarkHeresy'' indicates a character whose life has been so dark and crappy that they've become entirely immune to fear and SanityMeter hits from 'mundane' horrors that have a natural explanation (such as, say, a very grisly murder scene; seeing an EldritchAbomination in the flesh will still hurt your psyche). There are several character backgrounds that makes your character start with this trait, from being Mind-Wiped to hailing from Volg Hive, a place so violent, dirty and low-down that it basically serves as a garbage pit you throw people too savage to live in a WretchedHive in.
* In ''TabletopGame/{{GURPS}}'', having the Callous disadvantage along with the Unfazeable or multiple levels of the Fearlessness advantage, and no disadvantages like Pacifism, Phobia or Squeamish, makes a character fitting this trope.
* ''TabletopGame/CallOfCthulhu'' player characters, non-player characters, friends, and foes all alike can, and probably will, become this trope if they didn't already start like this for one reason or another.
[[/folder]]

[[folder: VideoGames]]
* It shouldn't surprise anybody that this is a ''goal'' in ''VideoGame/DwarfFortress'', what with being the veritable poster child for VideogameCrueltyPotential. Unhappy dwarves are prone to fits of violence, and nothing makes a dwarf unhappier than seeing loved ones and treasured pets die. The solution? Drip feed them a steady stream deaths until they acquire the coveted "doesn't really care about anything anymore" trait. [[UtopiaJustifiesTheMeans All in the name of progress of course]]!
* In ''VideoGame/FinalFantasyVII: DirgeOfCerberus'', the Tsviets of Deepground are like this. Special mentions go to the team-killing Azul and bloodthirsty Rosso.
* Summoners in ''VideoGame/FinalFantasyX'' are like this, raised from a young age to accept that someday, they'll march off to battle an EldritchAbomination [[spoiler:and [[HeroicSacrifice die in battle]]]] to give their world a few years' off from its horrific bombardment ([[spoiler:Everybody besides from the player and the protagonist are aware of this, to them there's no other option. It's either to not give the world temporary peace or no peace at all. Yuna, a summoner, only decides to find another way when she learns that a second sacrifice is needed]]).
* Similarly, in ''VideoGame/TalesOfSymphonia'', TheChosenOne is raised to believe that they are responsible for sacrificing their life to save the world. Some accept this better than others, although it leaves both the ones we see with serious self-esteem issues. Colette believes that her life only has value as long as she can have the strength to become a sacrifice, and is all right with the idea because it will allow her friends to live long and happy lives in a carefree world. Zelos, although he hides it, is far more bitter about the entire system.
* ''VideoGame/TalesOfTheAbyss'' not only has [[spoiler:Ion]] go to his death with a smile because he can't grasp that his individual life has any meaning besides what he can do with it, like [[spoiler:trying to stop a war, find a way for Luke to win and save Tear's life]] and instead of resenting it, he is honestly happy that betraying him and causing his death helped TheMole. While he's an extreme example, the entire population of Auldrant qualifies.
** Nephry [[spoiler:breaks up with Peony because the scorer said she'd marry someone else,]] and not only does neither of them fight it, they don't try to renew the relationship even after [[spoiler:the Score is rejected]] and they have the option.
** Luke's own father and uncle are willing to [[spoiler:send him to die]] both [[spoiler:to set off a war they'll win]] and because the Score says so: it's not until fairly late in the game that they seem to realize that this was a cruel thing to do to Luke and Natalia and it would have been not just ok, but ''good'' for them to not want to do it.
** Grand Maestro Mohs sees nothing wrong with [[spoiler:a genocidal war]], since the Score was made to bring prosperity to Auldrant, so it's obviously for the best. While Mohs is hated by fans because of [[spoiler:Ion's death]], he actually doesn't even qualify as a WellIntentionedExtremist on Auldrant. His is the ''moderate'' faction, containing the normal, sensible members of the Order who just want the best for Auldrant, like Tear. In a different era of Auldrant's history, he'd probably be [[WhiteAndGreyMorality a good guy]], just not when [[spoiler:the Score is currently counting down to Auldrant's demise and he's dealing with replicas. Since the Score, written for the benefit of everyone, doesn't regard replicas as worth a mention]] he's actually fully justified in considering them not people, given the Order's doctrine about Lorelei. He's actually completely right that [[CrystalDragonJesus Lorelei]] cares about everyone, [[spoiler:he just overestimated Lorelei's ability to make the Score turn out that way.]]
** Almost everyone reacts with shock and horror to the idea of [[spoiler:revealing a Score of death]], even when, or especially because, doing so would save someone's life [[spoiler:and go against the Score, and since the Score was written to create the most prosperity and happiness for Auldrant's people, obviously Lorelei wouldn't have had them die then if it wasn't for the best.]]
** The best example, even more than [[spoiler:Van]] is the BigBad. When Luke asks him if he [[spoiler:cares about Luke at all other than as a living weapon]] he honestly ''doesn't understand the question'', mistaking it for an existential one. The BigBad was brought into the world as a LaserGuidedTykebomb, [[spoiler:in accordance with the Score]] with parents who were aware of this the entire time and only thought about him in terms of that function [[spoiler:just like how he regards Luke.]] Oh, and as a babysitter for their 'real' child. The people who [[spoiler:used him to destroy his homeland and as an excuse for performing deadly experiments on civilians who were going to die anyway]] considered themselves fully justified, between the Score and using him as a scapegoat. When that's the ethical framework in which he was raised, is it that odd that he [[spoiler:doesn't see anything wrong with creating replicas or destroying Auldrant?]] After all, it was ok to [[spoiler:hook him into a machine and destroy Hod]] for the greater good, and he's doing this to allow humanity to [[spoiler:survive the Scored end of the world.]] In the context of [[spoiler:Van]]'s childhood, his interactions with [[spoiler:Luke]] in the early game become a massive PetTheDog. He gives [[spoiler:Luke]] the childhood he wishes he could have had: a comfortable life with [[TheMole parental]] [[EvilMentor figures]] who at least seem to love him instead of being constantly told [[spoiler:thousands will die]] because he's a monster and subjecting him to brutal experiments. He just can't grasp that [[spoiler:Luke]] feels he has a right to resent what was done to him because [[spoiler:Van himself]] was repeatedly told that he didn't and internalized the idea.
** The StartOfDarkness for most of [[spoiler:the loyal god-generals]] was when they ran into a horror that they could ''not'' accept. [[spoiler:Largo]]'s daughter was kidnapped, causing his wife to kill herself and he could not have justice. [[spoiler:Legretta]] suddenly fell in love with someone she went after in a RoaringRampageOfRevenge and the knowledge that [[spoiler:this was likely Scored]] [[MoreThanMindControl makes her skin crawl]]. [[spoiler:Sync]], like [[spoiler:Ion]] believes that he can't have value other than as a tool and hates this.
* ''[[FatalFrame Fatal Frame II]]'''s Crimson Sacrifice ritual involves one twin strangling another to pacify the gate to Hell. All sets of twins in the village know of the ritual and accept it as necessary. Some, like Sae (though not her twin), even look forward to it...
* [[spoiler:The Little Sisters,]] as shown in ''VideoGame/{{BioShock 2}}''.
* In ''VideoGame/SuikodenIII'', [[spoiler: Yun of Alma Kinan]] is fully aware she's going to be sacrificed as part of a ritual to [[spoiler: continue hiding the sealed True Water Rune]]. Though the party that meets her protests this and tries to stop the ceremony, she calmly insists on its necessity, and [[spoiler: the ritual goes as planned]].
* The initial protagonist of ''{{Theresia}}'' was raised by a TortureTechnician, and displays a lot of sadomasochistic tendencies (sometimes at the same time as more normal reactions.) In particular, she's comforted by the smell of blood.
* In ''{{Videogame/Mass Effect 2}}'' [[WoobieDestroyerOfWorlds Jack]] is this trope, full stop. At first she seems to just enjoy killing, but it's not until you do her loyalty mission that you find out she was put into life-or-death combat matches with other biotics as a child. When she won, she got a dose of drugs. As she says, she "still gets a rush" when she kills someone.
** [[LastOfHisKind Javik]] in ''Videogame/MassEffect3'' is this as well, but for different reasons. Having been born when the [[EndOfTheWorldAsWeKnowIt Reaper War]] in his cycle had already been well underway has caused him to simply accept war and atrocities as a fact of life. This is explicitly called attention to while talking to him after Sanctuary, if you talk to him before talking to Tali, you hear them have a conversation about what happened at the Cerberus facility being pretty typical in his cycle.
* Heather in ''VideoGame/SilentHill3'' becomes increasingly inured to the blood and gore all around her as time goes on, but even at the beginning she's surprisingly blase about, for example, finding a roasted dog in in a cafe. Some speculate being raised by the ProperlyParanoid Harry Mason or [[spoiler: having the memories of torture-magnet Alessa]] had something to do with it.
** However, at the end of the game, she finally gives in to everything she's experienced, most notably finally being able to [[spoiler: grieve the death of her father]]. She collapses after the final boss and allows herself to cry it all out.
** Examine Heather's knife in her inventory and she'll comment that she started carrying it for self defense, but now feels comforted and excited by having it.
* In ''VideoGame/FinalFantasyVIII'', most of the playable characters are Special Forces qualified [[ChildSoldiers teenaged mercenaries]] who've been in training since before they reached puberty. Rinoa, as their client, is shocked and upset to hear Squall tell her - with full agreement from Selphie and Zell - that they will follow her orders no matter how hopeless they think her plans are, even if it gets them killed. Squall, in turn, is confused and frustrated by her reaction; he thinks they're simply being professional.
* All the inhabitants of Vella's world in ''VideoGame/BrokenAge'' (bar Vella herself and her grandfather) find the idea of sacrificing young maidens to a giant monster to be not only acceptable, but to be celebrated. Young girls will go out of their way to be chosen, the villages to dress them up in themed costumes and those not chosen are shamed and their family disgraced.
[[/folder]]

[[folder:Visual Novels]]
* Shirou in ''VisualNovel/FateStayNight''. It's hinted at in Fate route with how quickly he adapts to the situation and more or less stated outright at the beginning of UBW. Why did he stay calm when [[spoiler:Shinji tried to melt everyone in the school?]] Because he's used to seeing corpses, which lets him tell them apart from people who are just injured! Isn't it obvious?
** To explain why he was used to seeing corpses at 18ish, [[spoiler:as a child, he was at ground zero of a magical version of Hiroshima, and the trauma of the explosion meant his first memories were of walking past literally hundreds of burning, melting, screaming very-soon-to-be-corpses]].
* Ayumi comments on this in ''VisualNovel/CorpsePartyD2DepthsOfDespair''. After finding herself back in the cursed schoolhouse, she notes that she hardly feels ''anything'' when examining corpses anymore.
[[/folder]]

[[folder: WebComics]]
* Very nearly everyone who lives long enough to develop a discernable personality in ''Webcomic/GoneWithTheBlastwave'', but unlike most of the examples on this page, this is not a result of some kind of supervillan scheme or GovernmentConspiracy. (Well, not as far as we know.) It's just that they've been fighting this apparently [[ForeverWar endless war]] that's [[HopelessWar long past the point of being winnable]] -by ''any'' of the participants- for so long and seen so much death and mutiliation and human misery in all its myriad forms that they've become completely desensitised to it all. The more normal squaddies seem to be operating on a mild form of HeroicSafeMode, whilst a couple have descended into outright ComedicSociopathy, and all but the sniper (the closest thing the comic has to an OnlySaneMan) [[DeathSeeker have a highly-developed death wish.]] WarIsHell.
* ''Webcomic/{{Homestuck}}'': The trolls live in a brutally SocialDarwinist CrapsackWorld where, had SGRUB not taken place and destroyed the planet, most of them would've probably been culled for being disabled [[spoiler: like Terezi and Tavros]] or low-blooded mutants [[spoiler: like Karkat]]. Daylight brings [[OurVampiresAreDifferent rainbow (blood)-drinkers]] and [[EverythingsDeaderWithZombies the undead]], while they sleep in a tub of tranquilizers to make sure they don't get nightmares from the {{Eldritch Abomination}}s that live in the sea.
** In "[S] Jade Wake Up", [[spoiler: Jade meets Feferi and they both meet, essentially, the "relative" (after passing through a tunnel of similar creatures) of Feferi's lusus. Jade is disturbed while Feferi thinks they're nothing to be scared of since ''the creature that is effectively her foster mother is essentially a small version of the one they encounter''. Feferi's lusus is also the one who killed all the rest of the entire troll species after unleashing a BrownNote of galactic proportions.]]
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[[folder: WebOriginal]]
* Played for laughs with WebVideo/TheCinemaSnob. At this point, when he shuts his eyes and thinks of something happy, he sees the village-burning scene from ''Film/CannibalHolocaust'' - not because it cheers him up, but because he's seen so many disturbing films that it's his ''baseline''. (The scene also comes to him unbidden when he listens to beautiful music.)
* Agents in ''{{LIS_DEAD}}'' are[[spoiler: conditioned right down to their exact personality]] and while some like Dramatic Detective don't entirely seem to ''like'' it, they at least put up with it because it's ''useful''
* WebVideo/TheNostalgiaCritic's DarkAndTroubledPast has caused him to be biased in this way, like when he's telling off the boy in ''{{North}}'' for having a panic attack because apparently every set of parents violently argue at the dinner table.
* [[ReligionOfEvil Pidanayana Buddhism]] in the dystopian science fiction work ''Literature/AdAstraPerAspera'' is a corrupted form of Buddhism that teaches that suffering is the key to Enlightenment.
* [[Podcast/WelcomeToNightVale Night Vale]]'s citizens are totally aware of and undisturbed by the maniacal City Council, the possibly demonic mayor, the Sheriff's SecretPolice, the [[TheMenInBlack vague, yet menacing government agencies]], the sinister [[InTheHood Hooded Figures]], the AlienGeometries of the dog park and radio station, and countless other vaguely Lovecraftian horrors.
** Two-parter episode ''The Sandstorm'' [[FridgeHorror hints]] that Night Vale's seemingly pleasant and cheerful rival city Desert Bluffs might actually be even worse, both in terms of horror and in terms of their acceptance of it.
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[[folder: WesternAnimation]]
* In the ''SpongeBobSquarePants'' episode "Ghost Host", the Flying Dutchman makes a habit of scaring [=SpongeBob=] while he stays with him while his ship gets repaired. Overtime, [=SpongeBob=] gets less scared of the Dutchman's antics to the point where he becomes unfazed at even his most elaborate horrors.
* In ''[[TheGrimAdventuresOfBillyAndMandy Billy & Mandy's Big Boogie Adventure]]'', Grim manages to obtain Horror's Hand, which requires someone to face their greatest fears, because he faces his worst fears every day: [[WithFriendsLikeThese being around Billy and Mandy]].
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