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Sanity Has Advantages
Will Graham: I thought you might enjoy the challenge. Find out if you're smarter than the person I'm looking for.
Hannibal Lecter: Then, by implication, you think you're smarter than I am, since it was you who caught me.
Will Graham: No, I know I'm not smarter than you.
Hannibal Lecter: Then how did you catch me?
Will Graham: You had...disadvantages.
Hannibal Lecter: What disadvantages?
Will Graham: You're insane.
Manhunter, and again in the remake, Red Dragon

Someone, perhaps The Hero, has to deal with an Ax-Crazy character who is more than a match for them...if it weren't for the fact that said Ax-Crazy character is of course insane in a way that can be exploited. (by a Guile Hero in particular).

Is the villain suffering from a Split Personality? Well, turn the multiple personalties against each other, the villain will be completely ineffective as they squabble and fight for control. Is the villain's problem a Complexity Addiction? Appeal to his ego; simply killing the hero with the pull of a trigger or a swing of an axe probably isn't grandiose enough for him. Is the villain a gambling addict? Challenge him to a game of chance, he won't be able to resist. What about the remorseless, sadistic Psychopathic Manchild who kills For the Evulz? Even he will grovel sobbingly at the feet of the guy who holds his favorite teddy bear hostage.

On those rare occasions when an Ax-Crazy villain becomes Bored With Insanity and turns sane again, the new-found sanity may throw our heroes for a loop when they make their plans...

Compare Not Worth Killing and The Blofeld Ploy. Contrast Power Born of Madness, where insanity has its advantages too.


Examples

    open/close all folders 

    Anime & Manga 
  • Cowboy Bebop: Spike is cornered by Nigh Invulnerable Mad Pierrot, but is saved by Mad Pierrot's paralyzing fear of cats.
  • A so-called "invincible technique" in Ranma ½, the Cat Fist, induces an Unstoppable Rage in its user that boosts speed and reflexes, as well as giving "ki claws" that can cut through anything...but since he acts and thinks like a kitten, he can be distracted by toys and games. Even Kunō figured out this weakness within seconds of witnessing the Cat Fist in action. Not only that, it takes considerable time for Ranma's fear to reach the necessary level, which means he (or she, as the case may be) is simply running around, completely open, unable to fight back until it kicks in...a perfect target for anyone who is aware of what's happening and has the skill to capitalize on it. In fact, the only time that the Cat Fist has been an actual advantage is the climax of the Phoenix Pill saga, where Ranma uses it to catch Cologne off-guard: most likely, as an Old Master who may well have been one of the people who proclaimed the Nekoken to be Harmful to Minors, she doubted anyone would be stupid enough to teach it in this day and age, nevermind the trainee actually being willing to use that training.

    It's notable that teaching this technique involves covering the student in fish and throwing them in a hole with a buttload of cats. The book in which Genma found the technique even points out that the technique is effectively useless (because of all the reasons above) and was only included as a historical curiosity. If only Genma'd turned the page and read that part... In the manga the page with the insanity warning and how useless the Cat Fist is was stuck to another page, keeping Genma from noticing it.
  • Johan on Monster is a frighteningly effective criminal even while insane. If he had been sane enough to not attempt to commit a perfect suicide by eliminating all evidence of his existence before goading someone into killing him, he probably would have been unstoppable. On the other hand he's still alive and apparently free.
  • Used a few times in Black Lagoon. Though, it varies. Sawyer the Cleaner is defeated in her first appearance when she drops her Audiovox, causing her to drop into a near-catatonic depression. The Twins are absolutely brutal in combat, but due to their madness and bloodlust have absolutely no grasp of the bigger picture and are led into a trap that Bailailaka even comments a sane person would never have fallen for. On the other hand, when Revy snaps and goes into Whitman Fever mode, she becomes ruthlessly effective. However, she's easily distracted by a room full of unarmed, surrendering people, and won't stop until she killed everyone in her path, no matter what. Ruthless, yes, but a waste of ammunition and time while at the same time attracting unneeded attention, which is the reason Dutch calls her out on it.
  • In Bleach, after Aizen fuses with the Hogyoku, he proclaims A God Am I and throws away all the tactics that had previously served him so well in favor of relying on raw power to crush his enemies. This trope comes into play when he finally comes across someone more powerful than he is- Ichigo after his latest bout of Training from Hell- at which point Aizen promptly gets curb stomped.

    Comic Books 
  • Most of Batman's foes have done this at least once. You could argue it's The Riddler's whole gimmick.
    • Given a little more depth and drama in some comic interpretations that demonstrate Riddler's shtick as an unstoppable compulsion, and all the problems this gives him. Played right, it's a tragically self-destructive compulsion: "You don't understand...I really didn't want to leave you any clues. I really planned never to go back to Arkham Asylum. But I left you a clue anyway. So I...I have to go back there. Because I might need help. I...I might actually be crazy."
    • In fact, in one early story ('60s) the Riddler realises that he simply cannot commit crimes without leaving riddles. He tries to fix himself, but that doesn't work either...
    • In the Batman: The Animated Series episode "Riddler's Reform", The Riddler actually goes straight and makes tons of money by designing puzzles for a toy company and licensing his likeness to market them. However, he just can't stop thinking about matching wits with Batman...so he decides that the only way he'll ever be secure enough in his new life to actually enjoy it is to kill Batman.
    • The Riddler example was sent up by Exterminatus Now, which featured a joke about the Riddler leaving a nonsensical riddle, and three weeks later Batman is still working on it when the TV news reports that the Riddler has stolen the Moon. Here it is.
    • The Riddler is now reformed and working as a private detective. Since Batman is also a detective, Riddler is now matching wits with him legally.
      • And was hired by Nightwing in the Trinity series to look into why items related to Batman, Wonder Woman and Superman were being stolen and who was behind it. The other heroes think he's insane when Nightwing mentions where he obtained the information, but the series showed that the Riddler had an advantage that even Batman didn't: assorted lowlifes and ex-lowlifes like the Penguin are willing to talk to him without having to be threatened.
      • Aaaannnddd now he's back to his old game again, following a kind of reverse-nervous breakdown.
      • Similarly, during the events of Knightfall, the Riddler is working alongside several random crooks to steal a large shipment of bonds that are passing through a post office. The crooks finally snap at Riddler after he forces them to delay the crime for weeks while he tries to get the police to pay attention to the riddles he's been mailing them (overshadowed by the breakout at Arkham and Gotham being all but completely put to flame). The Riddler flees, and the crooks go ahead with the crime...which goes pretty well. They follow the Riddler's actual plan (without the riddles) to the letter, and they're in and out in minutes. One even notes that if he weren't so hung up on his riddle-gimmick, he'd make a fortune, but another counters that it's probably that very same obsessive attention to unimportant details that lets him plan heists this well. Of course, it all comes to naught when they get taken down by the Huntress.
    • Subverted in one episode of Batman: The Animated Series where the Joker develops a plan to kill Batman by lowering him into a tank of piranhas, but abandons the idea because piranhas' faces look like frowns rather than smiles. Harley decides to curry the Joker's favor, captures Batman for him and arranges it so Bats would be upside down, so the "frowns" look like smiles to him. The Joker is furious for being upstaged, but further outraged that she would create a "punchline" that has to be explained. So he lets Batman down and leaves but seconds later decides this is too good a chance to pass up and comes back to just shoot him.
    • It's not Two-Face's fault that he has to let a coin flip make his decisions for him, so that, if you toss a ton of coins in as he flips, he can't make a choice anymore! Honest, it's not!! Naturally, Batman exploits this in an episode of Batman: The Animated Series where he replaces Two-Face's coin with a trick one that always lands on its side. The ploy backfires on Batman when the coin keeps bouncing towards the edge of the derelict skyscraper.
      • This is further explored in the comic based on the series; Two-Face ends up with a weighted coin and commits a series of good deeds. However, this backfires, as his good acts not only start to get a little darker, but become suicidally dangerous.
      • In DC One Million, it's mentioned that a future Batman eventually cured a future Two-Face by convincing him that, coin toss for coin toss, he'd made more good decisions than bad ones.
      • In his first appearance, Batman slipped him a coin weighed to land on its side and when he said, "Heads I'll let you go, tails I'll kill you" got him to agree to turn himself in and submit to all necessary plastic surgery and psychotherapy. It worked — but meant the end of Two-Face.
      • The one-shot Arkham Asylum: A Serious House on Serious Earth has Arkham therapists trying to treat Two-Face by expanding his mind to the number of possibilities in each action, by replacing the coin with a deck of cards, eventually planning to work him up to the I Ching. This has a downside, as it means that Two-Face cannot decide whether or not to go to the bathroom.
      • In Batman Forever, Two-Face has Batman on the ropes, about to shoot, when Batman reminds him to flip his coin. When he does, Batman throws out a dozen or so similar coins. Two-Face tries to catch them all, and falls to his death. In the Peter David novelization, Bats blindly throws a Batarang, hoping to knock the coin away and stymie Two-Face. It works, but Two-Face just leaps to catch the coin and falls two yards onto a girder, with the equivalent of "nice try". Then Robin calls him out on never using the coin on himself. He looks at the coin, and just lets go. Robin says he didn't actually mean to kill him, and Batman says that maybe Two-Face just made his first real choice in a long time.
    • The Batman villain Cluemaster began as a cheap Riddler imitation, who used non-verbal clues in the same kind of compulsion. The later writers decided to play with the trope a bit, and had the Arkham psychiatrists cure him of his mania. Now, he's a criminal mastermind who doesn't leave clues behind. "Gee, thanks, Arkham," says Robin.
      • Though this is also what prompted his daughter Stephanie Brown to become The Spoiler—she would just spoil his schemes anyway.
    • All of the above notwithstanding, the Joker largely benefits from being insane, since it has the advantage of making him completely unpredictable, which is handy when his nemesis' primary skill is being Crazy-Prepared. It's also the only thing that has kept him from getting the Death Penalty dozens of times over.
      • One particularly interesting example is in issue 7 of his self-titled comic. After a day where Joker and Lex Luthor accidentally swap their main characteristics (madness and intelligence, respectively) Luthor is in his jail cell, remembering that when he was mad he had thought of "the ultimate theory", an explanation for the universe that he'd need to be crazy to come up with that would have made him world-renowned. Unfortunately, he was unable to remember it when his sanity was restored.
      • A couple of comics have posited that he isn't insane. One story in Batman Black and White 2 has the psychologists at Arkham stumble across an anonymous report from one of Joker's therapists, which explains in detail how he is chillingly rational and aware of his actions, and perpetuating the ultimate scam by faking madness to avoid execution. The report ends with the writer recommending he be tried as sane and sentenced to death. The other Doctors actually find themselves agreeing with this assessment...until Harley Quinn walks by and recites the final words. She wrote it, is now mad herself, and there's no way her diagnosis would stand up in court. The doctors still think she was right, though...and that the Joker let them find the report, knowing they couldn't do anything with it.
  • One of the major advantages Spider-Man has over his Rogues Gallery is that most of them are rather crazy and Spider-Man, editorially-mandated Deal with the Devil notwithstanding, isn't. None of them illustrate this better than his Arch-Enemy Norman Osborn a.k.a. the Green Goblin. Norman is a manipulative sociopath on a good day. The rest of the time he's an Ax-Crazy monster in a garish outfit riding a hoverglider throwing pumpkin bombs. No matter how well he manipulates, schemes, and kills his way into power, Osborn always ultimately loses because he's too crazy to keep it together once he reaches the top. Norman gets a lot more dangerous when he purges himself of the Goblin formula. While that renders him physically an ordinary human, it also renders him more or less sane but just as much of an Evil Genius as ever.
  • In one early Spirou and Fantasio adventure, they have to stop a Mad Scientist from launching a device that will set fire to the Earth's atmosphere. They fail. They say their goodbyes...only to discover that the Mad Scientist was, well, mad and his doomsday device was mostly made out of old shoes.
  • Zot!'s archenemy, Dekko the cyborg Mad Artist, tends to get beaten by his own self-destructing insanity at least as much as by the hero's actual efforts.
  • In The Search, a sequel comic to Avatar: The Last Airbender , insanity fails for Azula again, when she tries to run away from the Gang when they get close enough to Hira'a. She stops running to argue with another imagined reflection of her mother long enough for Zuko and Katara to capture her again...and she also attracts the attention of an enormous, angry wolf spirit.

    Folklore 
  • Trapped by a vampire? Throw some rice/beads/knotted bits of string at it! They have to stop and count it. Ah ah ah!
    • Beautifully done in The Rashomon episode of The X-Files.
    • And subverted multiple times in Discworld's Carpe Jugulum, where this is one of many traditional vampire weaknesses the Magpyr clan had overcome.
      • It's inverted right back when, under the stress of having their plan spontaneously collapse when Granny Weatherwax "borrows" their blood, the Magpyr's conditioning starts to fail. Since the Magpyr's conditioning involved knowing the root cause of every traditional weakness and countering that, the resulting collapse added a form of hypochondria of sorts. So, for example, they're no longer immune to religious symbols...and they've memorized so many that they see religious symbols everywhere.
    • Charby the Vampirate subverts it in one early strip. He is compelled to count a handful of beans his intended victim throws at him, but does it by determining the average weight of a bean, weighing the pile, and extrapolating how many there are from that.
    • Subverted in the sequel to Dracula 2001, when a vampire accurately counts thousands of grains of rice before they even hit the ground.
    • In Supernatural, it's leprechauns that have this problem, not vampires. In "Clap your hands if you believe", Sam gets knocked around by the leprechaun before pulling his container of salt out of his pocket and emptying it onto the ground, to a This Is Gonna Suck from his opponent. He then banishes it at his leisure.
  • Likewise, the kappa of Japanese folklore. Its Weaksauce Weakness is that its power is derived from a pool of water carried in a dent in the top of its head. Not only does it have to avoid spilling the water in an attack, but it is also supremely polite: if you bow to it, it will bow back to the same degree as you do. All a human victim has to do is bend over and offer a polite greeting, and the kappa will be obligated to return the salutation, despite the fact that it deliberately spills the water it requires.

    Literature 
  • The page quote is a near-exact adaptation of a scene from Red Dragon, although Graham's original explanation is "Passion. And you're insane." Lecter abruptly changes the subject.
  • This is what allows Tavi in Codex Alera to defeat an Ax-Crazy but vastly superior opponent. He uses her name and reputation to start psychoanalyzing her in the middle of their Duel to the Death, and watches her reactions to give a Hannibal Lecture that drives her into making a mistake due to screaming, psychotic rage.
  • In Jonathan Strange & Mr Norrell, The Gentleman could have killed the magicians at any time, but as the book explains fairies have a greater capacity for magic, but much less of one for reason. Instead he spends years watching them and coming up with plans to destroy them while doing nothing, under the belief that these plans wouldn't work. And the actions he does eventually take backfire on him in the end.
  • In Brisingr of the Inheritance Cycle, Brom hints to Eragon in a memory that Galbatorix's insanity is something that he should use to his advantage when it finally comes time to face him. "Whatever you do, you must remain nimble in your thinking. Do not become so attached to any one belief that you cannot see past it to another possibility. Galbatorix is mad and therefore unpredictable, but he also has gaps in his reasoning that an ordinary person would not. If you can find those, Eragon, then perhaps you and Saphira can defeat him." Galbatorix has no empathy, so Eragon gives him some - for all of the lives the mad king ruined - and it drives Galbatorix to commit suicide.
  • In the backstory of the Vorkosigan Saga, Mad Emperor Yuri decided that his relatives were plotting to overthrow him, so he ordered the assassinations of anyone with enough Royal Blood to claim the throne. This meant he ordered the maternal side of Aral Vorkosigan's family assassinated, but since the Vorkoisigan side didn't have a strong claim to the empire, he left them alive. If he'd been sane, it might have occurred to him that Aral's father (Who happened to be the most talented general on the planet) would be upset about his wife and children being brutally murdered. This leads directly to Yuri's overthrow, making his fear a Self-Fulfilling Prophecy.
  • In Harry Potter, it's repeatedly alluded to that Voldemort's egomania is keeping him from being a much more effective villain by compelling him to keep the Villain Ball on his person constantly. He starts juggling it in the final book, and becomes much more dangerous. Probably the best example is the horcruxes themselvse. Harry observes that had he made them innocuous items and hid them in plain sight, it would be impossible to find them. Fortunately, as Dumbledore explains, Voldemort's obsessive nature focuses on trophies and rituals, so he needs them to be special items, hidden in special places, which makes them easier to track. Although in truth it's not so much Voldemort's obsessive nature that makes him choose grandiose objects for his horcruxes; it's his pride. Said hubris is behind pretty much every mistake he makes — look at how he decides straight-off that Harry, rather than the pure-blooded Neville is the Chosen One, just because Harry is a half-blood like himself.
    • For that matter, a large number of Voldemort's henchmen manage to mess things up for him by being various flavours of sociopathic, vain, narcissistic, delusional, uncontrollably violent or a combination of the above, simply because that's the sort of unbalanced person Voldemort attracts in the first place.
  • Played with in the Hercule Poirot book, Lord Edgeware Dies, in which Poirot admits that what he really needs to catch criminals is a sane partner, so he can observe what conclusions the criminal expected a sane man would draw from his misdirection.
  • In The Belgariad, the king of Cthol Murgos is mentioned as having been a great warrior once, but by the time he appears his insanity had grown to the point that when he meets his archenemy in battle, he's so focused on killing him that he doesn't bother defending himself. He dies still screaming for the man to come back and fight him.
  • Invoked by the character Zane in the second Mistborn book. He is legitimately Ax-Crazy, but is quite self-aware about that fact, considering the fact that he hears a voice in his head that goads him to kill everyone he meets to be personal flaw that he must work to overcome if he's to reach his full potential. Of course, being Ax-Crazy, when this plan falls apart he doesn't take it well, but the (sane) Action Girl who he tries to take it out on succeeds in killing him, thereby proving the trope.
    • Ironically enough, the voice in his head is not a symptom of his insanity. He actually has the setting's God of Evil in his head, which is the primary cause of his insanity.
  • The only way Crown Prince Alaric was able to defeat Gaithim in The Quest of the Unaligned was because Gaithim's Ax-Crazy nature made him make two fatal errors. In the first fight, he had Alaric completely at his mercy, but instead of killing him quickly, he began to torture him, which bought time for The Cavalry to show up, in the form of Nahruahn and Laeshana. In the second, he shielded himself against any form of magic, but completely forgot that he was still vulnerable to mundane knives.
  • In A Song of Ice and Fire, this is pretty much Joffrey's and later, Cersei's main weakness. Joffrey only knows how to be as cruel as his imagination can allow him to be, and nothing else. It's his execution of Eddard Stark, done for no reason other than petty cruelty, that basically guarantees that the war between the Starks and the Lannisters has no possibility of a peaceful conclusion, and when Tyrion is appointed as acting Hand, most of his job consists of trying to minimize the damage done by Joffrey's insanity. Cersei's is slightly different, as most of her mistakes result from her mind-blowing level of paranoia, thinking that everyone who doesn't constantly kiss her ass and do absolutely everything she asks is trying to sabotage her, so she makes sure everyone around her is nothing more than a yes-man, and has everyone who's competent removed. This bites her right in the ass, and fast when she reinstitutes the Faith Millitant, which promplty arrests her for treason and adultery.
  • Insanity may not be exactly the right term. The Ontongard of Ukiah Oregon are Hive Mind aliens that think of themselves on a scale smaller than humans can see; they take multicellular forms but if those are torn apart they form into smaller animals. Ukiah, being descended of a mutant Ontongard who kept individuality, escapes "one" human-shaped mass of them by going over a cliff and catching a branch near the edge. The Ontongard mass follows, and some parts of it grab for the branch, some try to backpedal, so it falls. Individuality does have its perks, Ukiah thinks.

    Live-Action TV 
  • The Doctor from Doctor Who has defeated many of his enemies via his intimate knowledge of how the latest Mad Scientist or Omnicidal Maniac will react, having encountered so many of them over the centuries that very little surprises him any more.
    • Special mention should go to the Master, who is probably the reason the Doctor can predict the reactions of the Mad Scientist or Omnicidal Maniac of the week.
    • And Davros, of course.
  • Kamen Rider Ryuki: Asakura Takeshi (Ouja) is raving mad and prone to crazy, suicidal behaviour. Once he starves his bound monsters until they threaten to eat him. Once, after failing to kill a long-running enemy, he charges a bunch of armed policemen without even using his powers. That last one does not end well.
  • This is likely the biggest reason why the Rangers managed to defeat the Psycho Rangers in Power Rangers in Space, despite the fact that the Psycho Rangers were far stronger than they were. The Psycho Rangers were not only insane, they were obsessive, unwilling to co-operate with each other (something the real Rangers were rather good at) and too impatient to adherre to the careful strategies that Astronema laid out (while the true Rangers were very good at sticking to theirs). In fact, in retrospect, the villains may have been more trouble to Astronema than they were ever worth.
  • Deadliest Warrior has two definite examples and one borderline case according to the experts.
    • Saddam Hussein defeated Pol Pot, despite the fact that both were classified as insane. Saddam was still more sane than Pol Pot. They say that, like history shows, Saddam would use his violent insanity to his advantage (killing thousands of Kurds to prevent rebellions and surviving the Iraq/Iran War and Gulf War despite overwhelming forces) while Pol Pot's insanity was self-destructive (the damaging genocide and being easily defeated in the Cambodian–Vietnamese War).
    • Hernan Cortes defeated Ivan. Cortes isn't classified as fully insane, just greedy and violent. In fact, he was able to make good choices to defeat a larger Aztec army and avoid arrest from the Spanish Empire (by bribing the army sent to kill him). While Ivan is insane from drinking mercury and alcohol constantly and being bipolar. In fact after his reign, the Russian Empire almost collapsed.
    • The borderline case was the George Washington versus Napolean Bonaparte fight, which Washington won. Neither was truly considered mad, but many X-Factors in Washington's favor involved the egotism and tend to overreach that Napolean exhibited late in life. In the aftermath, it was even mentioned that a younger version of Napolean - at a time when he was't such an egotist - may have done better.
  • Clearly, this is why Kirk and Spock were able to defeat Garth in the Star Trek: The Original Series episode "Whom Gods Destroy". Garth was a madman, and the fact that he flew into rage on more than one occasion when he was frustrated (such as when he realized he needed to know a countersign in order to board The Enterprise) showed that his madness was hindering him greatly. Garth's attempt to intimidate Kirk by murdering his lover with the super-powerful bomb he created does nothing more than prove to Kirk - and the viewers, most likely - that he's a lunatic, and when he thinks he'll have more luck with Spock due to Spock being a "very logical man", Spock's logical thinking is, in fact, what leads to Garth's final defeat.
  • In a heroic example, Monk's severe OCD makes him the world's greatest detective, but also makes him too unstable to be relied upon in desperate situations, as evidenced by the pilot in which his condition causes him to freak out and let the killer escape. This is why he's not been allowed back on the police force since the Heroic BSOD he had following his wife's death. Even in the depths of the seriousness of the series finale, the OCD comes shining through full force in an intentionally Level Breaker moment after Monk has been poisoned and told he will vomit first, then die. Cue awesome run-on gag of Monk focusing on the vomiting aspect and ignoring death.
    Adrian Monk: Are you sure? Does the vomit really HAVE to be first?
  • River Tam in Firefly is unbelievably intelligent, combat-capable, and psychic, but her usefulness in a number of situations is clouded by mental instability. She gets better in the movie.
  • When it comes down to it, this is the entire point of Criminal Minds (and similar Real Life organizations): some serial killers are obviously mentally unstable ("disorganized"). Therefore, they have patterns that can be predicted, flaws that can be exploited, and make mistakes that can be turned against them. This is Truth in Television to a point: many serial killers escape capture and leave no clues. Some are only caught when they taunt the police, looking for validation of their brilliance.
  • The primary reason House has a team is to balance out his various manias.
  • In an episode Xena: Warrior Princess, a man tries to kill Xena just for the challenge. He tells her he has advantages over the two deadliest opponents she had faced at the time: he doesn't have a soft spot for her like Draco did, and he's not crazy like Calisto was.
  • Stargate SG-1: The Goa'uld as a whole. Sure, they have an enormous technological advantage thanks to their genetic memory, but said memories as well as abuse of the sarcophagi mean they are all megalomaniacal cliché villains. Furthermore, most of them believe in their own propaganda about being gods, and act with the expected supreme arrogance. The System Lords spend most of their time and ressources fighting each other rather than dealing with their common enemies, which both Tok'ra and Tau'ri gladly take advantage of. They also waste their soldiers by slaying them for the slightest failure or insisting they always fight to the death, even against disastrous odds, rather than withdraw to win another day. The Goa'uld were the dominant species of the Milky Way till season 8, but they would have been infinitely more powerful if only they had co-operated from the start, rather than being forced to by Anubis or the Replicators. Notably, the few System Lords that don't buy fully the godlike nonsense (like Ba'al, or Yu before he went senile) are portrayed as much smarter and dangerous than their brethren.
  • In the Agents of S.H.I.E.L.D. episode "Beginning of the End", HYDRA's plan to infiltrate the military is ruined because Garrett crashes the meeting that was supposed to convince to military to hire HYDRA's supersoldiers, rants about his delusions of godhood and attacks one of the representatives. Garrett's saner accomplices are not best pleased.

    Tabletop Games 
  • In Unknown Armies all magicians are insane, to the point that several of the most powerful NPCs are completely mundane, and players without powers often have significant advantages over those with, and various examples of possible mundane parties are discussed in the Global level of the sourcebook. One of them is even a bunch of stage magicians who pretend to have real powers. In the New Inquisition sourcebook, they explicitly address this trope, pointing out that by virtue of not having any magical powers, the head of the conspiracy is sane, his vision unclouded, and capable of everything a multi-billionaire with few ethical scruples can do. Which is quite a lot.
  • Betrayal at House on the Hill has the Sanity stat, which often determines whether or not your investigator will keep their wits about them...or simply stay alive. It's exceptionally useful if a high-Sanity character like Father Rhinehart manages to get a hold of the Ring, which allows them to attack with Sanity instead of Might. Sanity PUNCH!
  • Exalted: Most antagonists come with some form of insanity-related dysfunction which will lead them to make drastic, exploitably bad decisions. Examples include other Creation-based Exalts, who are usually blinded by the towering hubris of the Great Curse; the Yozis, who come with a heavy paradigm blindfold that leads to them interpreting nearly everything in terms of their own fundamental concepts; apostate Alchemicals, who are compelled by their condition to become less and less stable as time goes on until the killing starts; and ghosts and Deathlords, who naturally default to melodramatic passion plays rather than the organic behaviour of humans. (Should you be coming up against a high-Essence sane Alchemical, who will likely have a high Clarity rating, you might actually have to invert this trope by making seemingly illogical moves to catch it unawares.)
  • Genius: The Transgression - a fan supplement for the New World of Darkness - on the surface averts this trope, until fully playing it straight. The Inspired can create Wonders, powerful "scientific" artifacts powered by their own madness. But this gift comes with the unfortunate side effect of horribly limiting their options, in addition to the obvious disadvantages of being insane. Mad Science is the only career path an Inspired individual can pursue, because their madness prevents them from pursuing regular scientific research, and it prevents them from holding down any kind of regular job. It's no wonder most Mad Scientists live in perpetual poverty (though the prohibitive costs to build their Wonders doesn't help).
  • In Dungeons & Dragons cosmology, it is often stressed that this is why the Blood War has been in a stalemate for eons, despite the fact that the demons of the Abyss outnumber the infernal armies of Hell by almost a hundred to one. The devils are a well-disciplined army of war mongers that lives by planning and strategy, while the strategy of the chaotic hordes of the Abyss can be explained in three words: "Scream and charge". If the demons ever did become sane and orderly, their superior numbers could let them eradicate the forces of Hell in less than a day...but if they became sane and orderly, the whole chaos-vs-order basis for the war would collapse.
    • Also stated to be why the Drow aren't a bigger threat to the world above; cunning, powerful, and with demonic magic on their side, they'd be a force to be reckoned with...if their society didn't consist almost entirely of The Starscream. Drow spend more time backstabbing and plotting against each other than their enemies.
      • Similarly, Beholders are capable of destruction on a massive scale (they can disintegrate matter at will, control minds, kill with a glance, nullify any magic they look at, and more), but can barely even be said to have a society, due to their inherent madness. All beholders are convinced that they and they alone were created in the image of their goddess, and any beholders who look even slightly different should be destroyed. It's also the reason they aren't much more numerous; when a beholder reproduces, it kills all but the offspring that closely resemble it.
  • In Warhammer 40,000 we have daemonic walkers with amazing statlines and low costs, but their insanity rules means that they are unreliable and have decent chances of attacking their own troops. Daemonic transports has a chance to EAT one of the soldiers they are supposed to carry. Kharn the Betrayer is more capable, but still have a 18% chance to strike an ally during CC.
    • On a similar note, Orks by themselves tend to be irrational, and will happily fight anything or anyone, including each other, without direction, and feral Orks are seen as more as a nuisance (a nuisance that helps train up troops) than anything else by the Imperium. However, if a strong minded Warboss manages to get his fellow Orks to focus on something they quickly turn from being comedy relief nuisances into an army that can easily rampage through entire systems.
  • In Werewolf: The Apocalypse, the Black Spiral Dancers' greatest liability is their insanity. All Black Spiral Dancer characters have at least one derangment, which can potentially interfere with social interaction, perception, and decision-making.

    Video Games 

    Visual Novels 

    Web Comics 
  • In A Miracle of Science, a thorough understanding of Science-Related Memetic Disorder means that Vorstellen Police officers play their role correctly, ensuring a mad scientist will surrender once their illness takes its course.
  • In the "Fire and Rain" arc of Sluggy Freelance, Oasis comes very close to killing Zoe, but suffers a complete Villainous Breakdown and collapses in tears moments before delivering the fatal blow.
  • 8-Bit Theater: Black Mage reveals that he plans to help Chaos because by his (it's?) very nature, he is just as likely to turn the world into cake as he is to destroy it. Of course, Red Mage points out how utterly stupid it is to bet your survival on an ultra-monster's chaotic nature. Notably, though, the Light Warriors are much more efficient and cooperative when not caught up in their personal manias(Be it stupidity, greed, pride, or bloodlust.)...though they succeed just as often by outright ignoring logic altogether.
  • The Order of the Stick has Tsukiko, who, as a fairly high-leveled Mystic Theurge (a Prestige Class for multiclassed divine and arcane casters), depends on high scores of Intelligence and Wisdom — but is a complete and total lunatic. Among other things she's a necrophiliac who makes it even squickier by the fact she sees herself as the mother of the undead that she raises. Thusly, her power is undermined by her tendency to make ridiculous decisions. The last of which is underestimating Redcloak's true power, or the fact her greater arsenal of spells can be neutralized by a simple combination of the evil Cleric's Command Undead ability, a Dimensional Ward spell, and the Counterspell option.
  • At least half the cast of Narbonic are mad, which has its advantages — a better "creative spark" and no Weirdness Censor, for instance — but can also blow in their faces, sometimes quite literally. The examples that spring to mind are when Narbon Senior imprisons Artie in a room with a perfectly serviceable telephone, and Madblood's downfall due to his refusal to acknowledge basic safety measures.
    Mell: You didn't build in a safety? A back door to switch the thing off?
    Madblood: Young lady, you fail to grasp the basic principles of mad science. [...] Common sense would be cheating.

    Web Original 

    Western Animation 
  • Aladdin: The Series
    • An episode featured a (non-villainous, though the heroes did not realize that at the time) reality-altering ("more powerful than a palace full of genies") catlike creature who was the Anthropomorphic Personification of Chaos, who shrunk Jasmine and then changed her back just because nobody was expecting it.
    • There was also Mechanicles, self-professed "Greatest of the Great Greek Geniuses". Tends to have a gigantic array of inventions and/or clockwork robots at his beck and call and probably would have conquered the world twice over if not for his Neat Freak tendencies and obsessive list compilation that would make Monk look slovenly; he was once defeated by the heroes getting oil on his tunic as a distraction.
  • One episode of ReBoot, where Hexadecimal had gotten "The Medusa Bug", which was turning everything in Mainframe to virtual stone. Bob (being immune) went and talked to her, mentioning casually how nice and orderly everything would be from now on. Naturally, Hexadecimal was the epitome of chaos, so she immediately undid it.
  • Played with on Darkwing Duck, during Megavolt's introduction in "Duck Blind".
    Darkwing: Fortunately, we have a psychological advantage.
    Launchpad: Because, uh, we're sane and he's not?
  • In the Futurama episode "Insane in the Mainframe", Roberto's hostage situation ends when, convinced that Fry really is a battle-droid, he has a Freak Out and jumps out the window.
  • Let's face it: How many times would Invader Zim have conquered or annihilated the Earth if he wasn't completely out of his Irken mind?
  • A non-villain example happens to Ben 10: Alien Force's Doctor Who expy Paradox. He claims to have been driven mad after a eon of being woven through the fabric of time and space until, as he says himself, he grew bored with insanity. This let him comprehend the incomprehensible and somehow get time travel powers.
  • In Generator Rex, Breach is an incredibly powerful teleporter capable of transporting anyone or anything anywhere with little apparent effort. If she put herself to it, she could be a bigger threat then her boss Van Kleiss. But her insanity and crippling OCD keeps her as a minor villain.
  • In Avatar: The Last Airbender the climax features an Agni Kai between Zuko and Azula where Zuko intended to take an advantage of his sister's crumbling sanity. It was working perfectly until she threw out the rules of the duel and shot lightning at Katara. Then it started working again when her normal hyper-awareness and genre-savviness was suppressed by her derangement and charged right into Katara's trap.
  • Phantom Limb from The Venture Bros. spent the third season insane but becomes a true menace again once he regains his sanity and builds the Revenge Society into a true supervillain alliance.
  • In Batman Beyond: Return of the Joker, Terry struggles in the final fight until he realizes the Joker's irrational fixation on Batman is his ultimate weakness, and proceeds to taunt him mercilessly about it. This causes the Joker to make a critical error that ends the fight in Terry's favor.


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