lol i just remembered a good story for you!
Ok, we have at our house a large trampoline. as you may know, the outer rim of the trampoline is lined with large springs, spaced about half a foot apart, that connect the trampoline surface with the metal frame holding it, and on my trampoline, the springs are exposed, without anything covering the rim of springs (ok, got the mental view? good).
alright, so when i was little, me and my sister were jumping on the trampoline, and my sister jumped really hard, which in turn sent me flying up into the air. and when i fell back down to earth, i landed on the outer rim of the trampoline, my legs going through the gaps between the springs, with a spring in between my legs. so i landed, crotch first, onto one of the springs holding the trampoline.