What about those who bawl out "harmony" voices that do not fit your chord scheme, and look around trying to catch appreciative glances from the audience? Then a cell phone starts tootling, someone dressed up as a businessman slowly searches all his pockets, and when he finally finds the phone, he shouts into it: "I CAN'T UNDERSTAND YOU, THE MUSIC IS JUST SO BLOODY LOUD! ... YES, CANCEL THE FLIGHT TO ZURICH, I'LL TAKE THE HELI TOMORROW!"