1999, Texas A&M: I was in the Marching Band at the time, and during the band's little parade from the Music Building to the stadium prior to each game, it was a normal thing for the person on the outside of each row to touch a particular street sign that we passed along the way. Somewhere along the line, it became a tradition for me to actually punch the sign. Being a thin piece of aluminum, if you punched the edge of the sign just right, it made a really loud bang, and the onlookers would often cheer in approval every week when I did it. So anyhoo, on the way to the stadium for the A&M game in '99, I wound up for the punch like normal, but instead of blasting the edge of the sign, I landed right in the middle of it, where the heavy wooden post supported it. I still got the usual cheer from the band fans as we marched by but FUUUUUUUUUK....
Had to keep marching and playing so I couldn't look at the damage until we got to the stadium. Standing in the tunnel before pregame, I looked down at my right hand, and it was starting to swell, and throbbing with extreme pain. I could barely move my fingers, let alone play the keys on my trumpet. The hand is broken. Should I go to the First Aid station? Well, I was the first person out of tunnel in my corner of the stadium and led a whole line onto the field, so I sucked it up and marched my spot in the pregame show, in too much pain to actually play the instrument, though.
When I finally got to the stands, I peeled my glove off to reveal a purplish hand that kind of looked like one of those rubber medical gloves when you blow it up like a balloon. My friends are like, yeah dude, that doesn't look good, you need to go to the First Aid station. Well, it turns out that our halftime show that week had me front and center near the 50 at the front of several formations (I wasn't a bigshot or anything, it just turns out in the marching drill for that week that I was a critical spot), and I didn't want a medic or anyone to pull me from the show just because my fcking hand was broke and I couldn't play. So I marched the halftime show anyway, and got the hand looked at afterward.
I had broken the little bone in the hand that runs from the wrist to the pinky and smashed in the pinky knuckle. To this day, when I make a fist with my right hand, the knuckles slope down at the pinky.