Boys and girls: Do you have any?

Irrational fears? Like something that's not likely to happen to you but you fear anyway? Mine are getting my eyes poked out with a pencil and going up in a hot air balloon (something i've always wanted to do) and it catching fire and having to make the decision to either jump and possibly die or burn alive (I saw it happen on the news a few years ago, horrible!)... Do you have any and if so, what are they?