I've pinched skin in stands more times than I can even hope to remember. I've gouged knuckles many, many times on rims & cymbals. Lot's of splinters from drum sticks and drum risers.
I've also hit my head on many low ceilings (some clubs simply shouldn't even have a stage) - one time I was bleeding so bad I thought I would have to go for stiches (we poured some cheap whiskey on cut and covered it with duct tape) There are many times I've cut hands, knees, etc. while getting on and off stages, etc.
Probably the worst injury was when a cymbal inverted and I tried to pop it back with my hands (thumbs). My thumb gave before the cymbal. A serious dislocation that took a long time to heal.
I once fell off a 6' high stage backwards when the back leg of my throne went off the end of the stage - fortunately it was an outdoor festival and I landed on grass with limited injury (I was sauced up enough that I would not have felt it even if I hit concrete).
I did fall into my drums once when I was standing on the bass drum swinging a cymbal stand in the air (I use to be a rather flamboyant showman) which resulted in several cuts and bruises.
I've been hit by objects thrown from the crowd (no major injuries), and was involved in some bar fights while gigging (one times I neded a few stiches) but I guess that doesn't count for this particular thread!