Well our ASM for a show a while back was in the booth sitting on the couch with his friend, which he most likely likes. (He is an old ME from a while back) He wants to show her the lights that were designed for the show even though he shouldn't be touching the board since the ME wasn't there and he has no idea about the stuff for this show. Well the hang was huge, basically all our dimmers on our FOH positions, PA Bars, PA Ladders and electrics were all used. We had maybe 20 not used. Well the board op (ME of the show) wasn't there and she likes to work with warm up cues, so the first cue is a 5 minute warm up cue for dimmer checks. Well he bumps it and boom, down goes the theatre power. Bad thing is we were about to start up a saw in the shop. >.> So our TD comes walking out and looks at us and goes what happened. We all deny it, then we see our old ME. The TD walks away to check out what happened and the master capenter and I look at him. He of course denies it, we only find out later what happened. But our TD wasn't to happy that he had to flip our main breaker. Just goes to show you, if it's not yours. DON'T TOUCH IT. Also goes to show warm up cues are bad.