I'm just generally un-killable?
I once fell off a rope swing (which had broken above me), somersaulted head over hells for 12 feet, then smacked my head against the base of a tree. After about 10 seconds of unconsciousness, but before anyone had reached me, I staggered upright with a groan of "That was awesome", though I do not actually remember saying that.
The only complaint I had was of a twisted muscle in my neck.
Similarly, I wander through moving traffic like I'm half asleep. I'm almost always fine, but I've dodged several cars, and once got away untouched form a clip that should have broken my leg.
Also, I won a fight against someone a head taller who was arguably twice as strong as me. It wasn't much seeing as he was laughably slow and unskilled, but people seem to find it impressive.