I took this to an extreme one time. There was a group of kids playing private games, and even when I offered to only use my PGP they were wary of letting me join. I came back and offered to play with no gun at all, and they were skeptical but allowed it. The result was actually pretty fun. I just hung around in the back row observing the opposing team and "suggesting" where my teammates should run to and sometimes poking my head out to draw fire. My team won by a wide margin.