A couple of things.
Height, was never an issue from birth, through childhood, hell I'd climb anything you want me to. Lately though, whenever I go on like a higher water slider or something, I've been open to thoughts of, what if I leaned over this too much and fell off of it? That's mainly what I fear. Otherwise with heights I'm fine.
The Dark. This originated in my childhood somewhere, and I don't really know when. I'm kind of the guy who, always looks behind his back, just to see if there's anything following me. If it's completely dark, like going to sleep or something, I'm fine, but it's just those long dark hallways that get me.
"Scary movies" Nope, can't stand them. Take me to the least "scary movie" you could find, I wouldn't be able to sit there and watch it. I've never liked them, I've never wanted to see them, and I never will. Of that I am certain.