My fiancee managed a cracked tailbone (or as she called it, a "broken bum"

) when we were at the snow a few years back.
Mt Hotham was having a shocker of a season with ice everywhere and the artifical stuff struggling to cover the grass. She fell on her ass twice in succession on ice, so hard that she was in tears, and she's no wimp. It took her 6 months before she could sit properly!
I also had a few nasty stacks that left me unable to sleep on my left side for two weeks afterwards.

The killer was me stacking backwards at speed on a snowboard, and hitting the "snow" (ice?) so hard that she could hear the thump from the bottom of the run
Wouldn't you know it? They had 200cm of snow a week or so after we left
Still, these guys are farked in the head. Obviously Americans that watch too much WWF