My mother told me this about my brother.
He used to watch the Superman live-action TV show and thought if he had a cape, he could fly. But there was a condition.
Superman, on TV, his cape always was straight as a board. So when Rob would tie a towel around his neck, he thought if he could run fast enough that the towel would fly out straight as a board behind him, he could fly while holding his arms out.
But how would he know if the towel-cape was straight if he didn't look back to check on it now and again? That's when he turned to look back at his towel-cape and ran into a tree... You must always watch where you're going.
A childhood belief about special powers

others believed things like this
- I used to believe that I could fly like Superman if I had the right cape and got a good running start. — Rick
- I used to think making straight A's in school was literally writing A's straight. Anon
- I used to believe that a weegie board was some sort of surf board.— Missa
- I used to think that if I told even one little whhite lie, I would go straight to hell.— Debbie
- if you eat toothpaste straight from the tube, you will get worms— wormelow
- that the money I gave at sunday school would go straight to God.— christine