When I use the duty finder I spend the entire dungeon making jokes... I still play my role but its fun to see reactions of the super serious ppl. I had a tank with no keyboard, I just told him "That's cool mate, just tank shit." I think for the most part ppl are quite mellow but you do get those elitists and serious types or others that like to pass the blame. Just ignore the jerks or make light of them to at least get a laugh (Although then again, Teasing may not be your style.. lol).