This reminds me of an incident I was involved in as a kid. We were all hanging around the schoolyard after school one day and this kid who was a couple years older and twice my size kept taking off on my bike. I told him to stop but he wouldn't,so I took a broomstick that was laying around and,as he passed by taunting me,I threw it thru the spokes of the front wheel. The bike stopped dead,and he flew over the handlebars and smashed face first into the asphalt. He got pretty jacked up,his mom made a big issue out of it,and I got suspended.That was about 1972. Things haven't changed much.