Saw Trivium in concert with DevilDriver and In Flames headlining. Great attitude those guys have. The incompetent monkey at the sound board kept cutting their feed (seriously, like 20 or so times during their set) and they never once acted like rockstar assholes and started bitching about it, or stormed off the stage. They just kept playing, with absolutely no power, like nothing had happened. Didn't even miss a beat. I was very impressed.