Another thing I did was, when I was a kid, I would get on my bicycle, go to the high end of the streets, and then ride as fast as I could down the alley, with no hands on the handlebars. It was about 5 blocks long, all down hill, and you would shoot out onto each street, with NO chance to stop. Or even slow down. I did this HUNDREDS of times!
And with all that, only ONCE did I come REALLY close to ending up as road kill. Of course, like has been said, the idiocy of youth, did'nt stop me!