For me, any poisonous reptiles, insects, and anything like that, um my cat dying in a bad way (like Coyotes killing him), um, me finding out I have some kind of cancer, dying in a very painful way, and any of my family/friends being gone forever in my life (I mean I know they're going to die but I want to die of old age), and there's more stuff like rejection and a bad but embarrassing nightmare coming true--oh gawd, I try not to think of a pesstimistic outcome of that and all...but yeah, that's about it.