This happened some 20 years back. My friends and I see had seen the Superman movie the night before.

During lunch break, someone had the genius idea of trying to fly like him on the playground.

2 of us would run forward, 2 others sat hunched over, to step on their back and push off. The idea was to see who 'flies' farthest. My friend and I went first. On the count of 3, I ran like a child possessed, stepped off my friends back and soared high and wide with my hand stretched forward like Kal-el himself, for 2seconds.

As soon as I landed, I heard a crack and knew I had fractured my right arm.

I won the contest but I have hated Superman ever since.