Okay, I've got my own experience with a bad sound guy. I was playing in Paris with the Magnolia Sisters and the sound guy was SMASHED. I mean a few bottles under, at least. First, he almost put the monitor down on Mom's fiddle. Second, when the battery died in my preamp, instead of changing it, he unplugged it, plugged me straight through the amp, and my very wonderful, rich-sounding Martin wound up sounding like a mandolin someone pulled out of a dumpster. During the break between the second and third sets, we actually WITNESSED him fall off of his chair, onto his back, and smash a full bottle of wine. YAY!