What little innocent things did you do in your childhood which amuse you when you think about it as an adult? I'll start.

When I was a kid I used to think that when people read the news on tv and looked at the camera, they were actually watching me through the tv. So I pretended to be interested in their news so that I don't hurt their feelings. My mother was always happy that I was so interested in watching the news. Good thing she didn't know the truth.