When i was a kid, i lived in an small town-house neighbourhood, and the way you got into that place was down a rather steep hill, with speed bumps at the bottom.
Well i knew a boy who lived nearby, kinda stupid kid, but hey I was young and didn't know any better not to hang out with him. We liked to ride our bike everywhere, since it was the best way to get into town on our own. One day he had the idea that it would be cool to ride our bikes down that steep hill and go over the speed bumps at a relatively good velocity.
So he goes first, and used his braked enough not to launch himself off the bumps and into the stratosphere. lol But i thought i could beat him at his game, so i go almost full force at the bumps, braking only slightly near the end. Well after hitting the bumps, i loose control (obviously) and smack the pavement with my flimsy rag-doll body. Tore my left leg up something bad, the left side of my torso was cut up, same with my arms and my back.
Suffice to say, not my proudest moment, as i limped my way home, crying and bleeding all the way there. It took a week to recover from the injuries. Never. Did. That. Again. Lol