I had a bad experience landing on my shoulder once.

My former stepfather thought it would be fun to put me on a four wheeler when I was 10 with no instruction on how to ride it. It took off and I tried to control it the best I could. I ended up going into a ditch at full speed, crashing into someone's driveway, flying over the driveway and going shoulder first into a powerline pole. Surprisingly, nothing broke or dislocated.