It really pisses me off when I'm playing CS:S, or Black Ops, and I'm in the zone. I'm doing really well, when some douchebag decides to keep his microphone on while he breathes like some kind of weirdo, or chews constantly. Can you loving turn off your mic? I mean, nobody wants to hear you breathing, or eating, or fapping, or some other weird stuff. I don't even want to hear the game through your mic either, because it's annoying as forget and it distracts me.
Just stop.