I'm fairly careful about my personal safety, but I do recall one thing pretty vividly:

Jumping on a pogo stick near a bunch of cement steps...

Well, I didn't start out that way. I was just hopping along, and somehow made my way towards that direction. I was going backwards a lot, since I didn't have all that great of control, and once I turned to look where I was going, I immediately hopped off. I was really close to those steps, and if I would have made one more jump I would have fell down them pretty hard... So I feel really lucky that I caught that in time.

I feel for people who have broken bones before... I can't even imagine what that would feel like.