Done the plank-rusty-nail when I was a kid, didn't quite get through the top of my foot but bled like a stuck fat-pig.
MTBing — many... dislocated-fused thumb bone 'cause I wouldn't wait for x-rays once they stopped the bleeding
Motorcycle thing cracked my sacroiliac.
MTBing — many many... rain ride descending, cap under helmet to see keep rain out blocked view of tree fallen across trail head-high...
Double-bass did in my right elbow — Kind of a cross between Tennis-Elbow and Golfer's Elbow. Elbow hurts right now.
MTBing — too many... Full body slam on 6"-8" wide "bridge"; GF/Wife had to turn me in bed every few hours for days...

Teens: Friend forgot key — yanked into house by his brother, I missed the entire flight of stairs landing on right knee in basement.
MTBing — way too many to list... only single-speeder at Nepal 3-day race, 3rd day finished with only crank as crank-arm had fallen off...
Done the grabbing solder-iron with peripheral vision and got the shaft...
MTBing — wayyyy too manies t... Malaysian Fire-ants, HK Asian Orb-Spinners, Asian-Centipede... how much time you got?
Most recently — month ago lifted a dumptruck tailgate on my own 'cause I was on my own; thing fell off again back at the shop and required a bobcat operator to lift it. It hurts to even hold my trombone (either one). Arm hurts right now.
MTBing...