There was also this one time where i was out on a small, frozen pond, with ice thick enough to carry me, my brother and my father at the same time, without cracking. So we made a slippery lane which we would run at and slide to the other end of it... But at some point when i tried, i lost balance, slid on one foot, and inevitably slipped and fell in the best Goofy manner you can imagine. I landed on my back so hard that cracks radiated out from where i hit the ice. Strangely enough, it didn't really hurt that much, and i didn't get injured. And i did, of course, continue sliding around.

To this day, i have yet to break a bone.