One of those things I always wanted to do, but lack of time/place/health insurance always seemed to prevent me from doing it.
I got a ripstick skateboard for Christmas, one of those bizarre two wheeled skateboards that flexes in the middle. I spent a few hours learning to skate down the street on it. I don’t know what I did or how I twisted myself, since I never really hit the ground, but an hour later I peed blood, so that scared the crap out of me. I guess it’s possible to pinch a kidney if you twist around too far! (I’m pretty flexible, so my back didn’t get hurt.)
