Sometimes the series follows real-world examples, such as Giggles' death-by-fire in Who's to Flame?. But most of the time there is simply a lack of logic in the casualties involved and the characters are simply overly fragile, such as Disco Bear's death in Ipso Fatso, where common reactions by the environment are multiplied to create a deadly scenario; and there's the situation where, even by Happy Tree Friend logic (if that's what you can call it), makes absolutely no sense whatsoever. The best example for this is Nutty's death in Swelter Skelter.