Only flesh wounds and mental scars so far, lucky for me. My worst was a classic nutshot. The guy somehow managed to shoot perfectly between two trees, while the boys were on an upswing from me running. Lefty took a direct hit. I spent the next 15 minutes bent over in pain, followed by a short wave of euphoria, and then more pain. I had to sit out the next two games, and was horrified to see the welt it left when I got home. No pictures of that one, unfortunately for you all.
The second worst was from a big game, where I ended up in a bunker next to a kid with a feather trigger and not enough discipline for it. He turned to ask me something, tapped my arm with the tip of his barrel, and accidentally pulled the trigger. The welt it left started bleeding right away, actually washing away most of the paint before I could get to it. I've still got a scar from it that looks kind of like a giant freckle. Here's what it looked like when the bleeding stopped: