1. Death -- I know...people think it's stupid to be scared of death. If there really is an afterlife and you're "in a better place" than there shouldn't be anything to worry about. And if there isn't...than when you die...it's simply over...which means you REALLY have nothing to worry about. It's just the uncertainty for me.
2. My house catching on fire -- Just think about it for a moment. You will lose just about EVERYTHING and possibly burn to death (quite possibly the worst way to die?). I'm also a huge dog guy and have 2 dogs of my own. To imagine losing them to a fire is scary.
3. Throwing up in a store -- If you're shopping and you all of a sudden have to throw up in the middle of a store with no bathroom near you...what would your thoughts be during and after? Sure it's nothing you could control...but how would you go about that?
Yours?