It's really easy for me. What i do now, if my team ain't capable of teamplay, i wont play 20 minutes hardcore for 1 mark, so i just stop.

AV is the exception, for any other bg, when more than 2 players follow me, harass me, i will stop at my gy and do nothing but defend myself. I don't even care anymore with the chat! i used too, and was only causing brain damage :P