What are you afraid of?

I don't have any extreme fears, but I used to be very afraid of heights. When I was about 9 I was trying to get a ball off of the roof of our house, and I got stuck on the way back down. I was laying on my stomach with my feet dangling down (trying to reach the ladder), but the overhang of the roof was too great for me to reach. So I layed there hanging on for my life until my brother came out and found me about 20 minutes later. Then my Dad came and got me down. Ever since then I have gradually overcome my fear of heights.