Rugby related- played a full game after dislocating my shoulder in the first line out, shoulder popped back in almost immediately. We were playing a British navy ship, I was playing prop, after the game the guy I played across from told me "I say you clenching your fist in every scrum down, thought you were going to punch me" told him "no, I was clenching my fist and tucking the arm in because I dislocated it in the first line out" he just gave me a strange look and walked away.
Kept playing after getting kicked in the chin when I was on the ground during a ruck, forgot my gum shield and it chipped my top two front teeth.
Really injured my knee in a game that I came out from but the next Saturday I basically taped it to the point I couldn't bend the knee and played since we were a person short.
Hockey related- kept playing after getting cross checked from behind into the boards about 5' from the boards which bent me to the point I thought the back of my head was going to touch my ankles, hurt like hell. I ended up sitting out two line shifts but then went back in.
Sprained knee, again taped it up and practically splinted it, didn't change much since I was never the "speedy skater' on the team.
Jump school- dislocated my shoulder on my first landing. They told us for the jump to count you had to run off the drop zone so I bundled up the parachute in the bag, layed down and crawled to get it over the shoulders, got up and ran off the drop zone, screw that I jumped out of that plane I wasn't going to have that jump not count. Went to the hospital AFTER I got checked off for the jump.