How about this one:
I was teaming with Corvain and a few others last night, and we get going doing room-to-room all rights (doh) on the first lvl of a fairly easy mission (or so we thought). Camera in main room, we spawn 5 lvl 253 sentries, all goes well. A few rooms later, an Ace Enforcer pops out, and starts whacking on our tank with a huge spiked club. Get this: Nobody heals the tank so he dies. We had a doctor in the team, so everyone was 'wtf?!' and 'how could this happen? Doctor!' Turns out the so-called doc was a couple rooms back looting

Of course, the tank leaves team immediately, and so would I have done. Unfortunately, the doc and team leader were pals, so he didnt get kicked like he should have.
All I can say is: Greed sucks!
