History Main / ThouShaltNotKillMuggles

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* If, in the ''Franchise/AssassinsCreed'' series, you repeatedly [[VideoGameCrueltyPotential kill civilians]], your "Synchronization Meter" (Health Bar) goes down. [[VideoGameCrueltyPunishment If you kill more than three civilians in a short frame of time you desynchronize]]. The reason given is because TheProtagonist never killed anyone because it would go against the first tenet of the Creed. This is averted after beating the game, letting you kill anyone you want, especially those annoying beggars, without any ill effect.

* The [[DifferentlyPoweredIndividual Genestella]] from ''Literature/TheAsteriskWar'' are strictly forbidden from harming muggles (even in [[CrimeOfSelfDefense self-defense]]) and laws tend to be biased in favor of the latter, but violence between Genestella-to-Genestella are a fair game. While ostensibly it's because the Genestella are much stronger than muggles, it's simply more on FantasticRacism on the [[MegaCorp IEFs]]' part.

* The [[DifferentlyPoweredIndividual Genestella]] from ''Literature/TheAsteriskWar'' are strictly forbidden from harming muggles (even in [[CrimeOfSelfDefense self-defense]]) and laws tend to be biased in favor of the latter, but violence between Genestella to Genestella are a fair game. While ostensibly it's because Genestella are much stronger than muggles, it's simply more on FantasticRacism on the [[MegaCorp IEFs]]' part.

* In ''Literature/{{Twilight}}'', the Cullens are vampires who adhere to a strict "vegetarian" diet which means they only drink the blood of animals and not humans. Unfortunately, this doesn't mean they're required or able to stop OTHER vampires from killing the humans they themselves won't eat.

* ''Literature/TheCampHalfBloodSeries'': Right in the first book of ''Literature/PercyJacksonAndTheOlympians'', Chiron explains to Percy that a demigod should never harm a mortal unless absolutely necessary. In fact, the typical demigod wields weapons of Celestial Bronze that can't hurt mortals even if they tried.
* In the ''Literature/{{Discworld}}'' novel ''Literature/{{Sourcery}}'' we're told that wizards don't kill non-magic users because: 1) They seldom notice them 2) It's not sporting, and 3) [[BreadEggsMilkSquick Who'd do the cleaning up and prepare meals and so on]].

* If, in the ''Franchise/AssassinsCreed'' series, you repeatedly [[VideoGameCrueltyPotential kill civilians]], your "Synchronization Meter" (Health Bar) goes down. [[VideoGameCrueltyPunishment If you kill more than three civilians in a short frame of time you desynchronize]]. The reason given is because TheProtagonist (Ezio or Altair, usually) never killed anyone because it would go against the first tenet of the Creed. This is averted after beating the game, letting you kill anyone you want, especially those annoying beggars, without any ill effect.

* The [[DifferentlyPoweredIndividual Genestella]] from ''LightNovel/TheAsteriskWar'' are strictly forbidden from harming muggles (even in [[CrimeOfSelfDefense self-defense]]) and laws tend to be biased in favor of the latter, but violence between Genestella to Genestella are a fair game. While it's because they're much stronger than muggles, it's simply more on FantasticRacism on the IEF's part.

** In a somewhat related example: in Book #26, [[CosmicHorror Crayak]] wants to genocide the [[ProudMerchantRace Iskoort]] while [[SufficientlyAdvancedAlien the Ellimist]] wants to preserve them. As such, the Animorphs and [[AndroidAmongUs Erek]] are sent to their planet to fight seven [[PersonOfMassDestruction Howlers]] over the species' fate. Eventually they realize that the Howlers can't kill any Iskoort until the "game" is over, making crowds very convenient.

* The [[DifferentlyPoweredIndividual Genestella]] from ''LightNovel/TheAsteriskWar'' are strictly forbidden from harming muggles (even in [[CrimeOfSelfDefense self-defense]]) and laws tend to be biased in favor of the latter, but violence between Genestella to Genestella are a fair game. While it's due to them being far stronger than muggles, it's more on the IEF's FantasticRacism towards them.

* The demons in the ''VideoGame/{{Reincarnation}}'' series aren't allowed to kill any humans other than Reincarnies, [[VillainProtagonist however much they may want to.]] They'll always mention to the player if a method being attempted risks harming innocents.

Generally speaking, humans tend to end up in charge regardless. Whether it's because of technology, intelligence, social organization, sheer numbers, or some combination of the above, they become the dominant race, leaving the fantastic people with two options. The first is to form an AntiHumanAlliance. The second is to quietly coexist. However, due to FantasticRacism, that doesn't always go smoothly, so for the fantastic races to reassure the [[{{Muggle}} Muggles]] that they can be trusted, strictly-enforced rules are often required.

* ComicBook/JonathanHickmansXMen: One of the three laws of Krakoa is 'kill no man'. Killing mutants is fine because they can be resurrected.

[[folder:Fan Fiction]]
* ''FanFic/RosarioVampireBrightestDarkness'': It's been stated that angels are forbidden to harm humans for ''any'' reason unless said humans die with sin; this also applies to monsters who [[WasOnceAMan were once human]], such as Hokuto. Being forced to MercyKill an HDA soldier to spare him a more agonizing death at Ceal's hands causes a lot of guilt for Gabriel. Now that Rason is the guardian angel of the monster world, he is the only exception.