Vampires ? Werewolves ? Or even...Demons ? Oh come on who would belive that, only a stupid person does. There's no something like it.   "You mean if I go out now I will be a vampire or even die because a vampire bites my neck."   "Or maybe if I go out now I will be a demon because I'm kinda evil"   "It's not like a random wolf would just appear and  fell on top of me and bites me then I become one of them"