There's another aspect to this: inverse spawn camping. This usually happens when there's a field that plays CTF with "infinite respawns" after touching the flag.
One of the earliest games I played was at a field that did this for the first 15 minutes of the game, except that these games rarely lasted longer. I just belly crawled within range of their flag bunker, and started picking off people who were camping. They'd dart out, tag their flag, and run back into the bunker, where I'd quickly peg them again, and again, and again. One kid that was doing this would just reach out and touch the flag pole (the rule was "touch the flag", which was maybe 3 ft off the ground), and hide back in. I popped off two rounds, the first hitting him square in the goggles, and the second was delayed just enough to smack him in the back of the head as he turned around. Apparently, this made him cry. Hopefully, it also taught him how to play by the rules.
I've also been called out for a "hit" before, and called a paintcheck on myself more than a few times, just to make sure. Sometimes, even a direct hit won't count, depending on any size limitations (dime/nickel/quarter), and it's played in my favor. Other times, it's sent me back to wait for a respawn. Either way, it felt good to play honestly and fairly.