i smashed up my knee and it is permantally numb on top, but it still works okey, just doens't bend fully....then i was doing a tree stall and my fucking shitty ass jib skis broke and i fell mad hard, got a really big charlie hoarse on my thigh, couldn't walk for 2 weeks, and then somehow it healed funny and further stops my leg from bending, all the scar tissue and stuff, so i haven't had any really bad injuries, but those where just annoying ones.