I dropped yesterday on the way home. I had taken the bike in the previous evening for a tuneup since my front Tiagra was rubbing a little and I haven't gotten around to relearning how to adjust them myself. Anyway, I'm on the ride home last night and crest a hill and figure I'd jump up to the big ring and get some speed going. I hit the shifter and my chain jumped completely over the big ring.

I grab the breaks and ease in a driveway, pop the chain back on and hop on and clip in, realizing I wasn't carrying any speed while trying to turn around and get back on the road......plop. Nice little piercing on my left calf.

Patience, I must remeber patience and not get in a hurry. The good news is, I printed out the spec sheet of my Tiagra front derailleur and learned how to tune the damn thing myself