ouch, reminds me of a little incident I had the other week, riding my fixed gear. I took a corner to sharp realising I was running the light in front of a big SUV (yeah, stupid me), but my pedal (cut-down japanese Superleggeri copy, made to look like a Pista set - everything for the hipstercred) caught hold of some world. not good. I managed to stay in the saddle, but my shoulder took the brunt of the impact and hurt for a week. Lesson learned: don't be an idiot and watch the lights.