[SomethingClever]

I'll get things started. And I'll rank mine at about 5 on a scale of 1-10, 1 being a bruise; 10 being decapitation.

I'm playing pickup basketball in Hermosa Beach, CA. Outdoors, of course. Me and my roommates are playing against a bunch of donks; guys who have no clue what they're doing basketball-wise, but are athletic and aggressive.

So I swat the [censored] out of this one guy's shot and get the ball on a fast break. One defender is with me and another is in pursuit. I'm running down the left side of the court and dribbling with my left hand. When I get to about the free-throw line, I slow up a bit, with the intention of blowing by the defender when he thinks I'm going to give up on the fast break and post up.

Unfortunately, this allows the defender in pursuit to catch up, and he trips at a full gallop and essentially tackles me collarbone-first into the support beam after I've made my move past the first defender.

Result: Fractured collarbone.

Runner-up. Also playing basketball. In high school. Guy drives the lane, I'm defending. He jumps, and I time my jump perfectly to block his shot. He realizes he's going to get rejected so he sort of flails his arms and legs and passes the ball away. One of his feet catches me square in the crotch. Pwntown.

I've also sprained my ankle quite badly, and once fell off the rim while trying to dunk and nearly stiff-armed the ground upon landing... but the above two were far more painful.