Yeah. Our worst sound experience we were playing a festival in Miami called the Miami Springs River festival. We of course had alot of the peoples there who follow the band and they were literally coming up to the stage and telling us you couldn't here the singer and the sound was just one big monotone with a little drumming in it. We were the first band on that evening so I was patient with the sound guy. Turns out the freaking sound guy was training his little brother and conveniently stepped out for a bite to eat and left him there trying to get our mix right. When he finally returned, we had about 3 songs left out of our 15 song setlist, he apologized and explained what happened. I was so freaking pissed, but later on that night he needed to borrow some extra extension cords and a few XLR cables, being the nice guy I am I still helped him out even after the reaming he gave us. It was hard to take it to personal because all of the other bands sounded like crap also, I don't think the festival ever hired those guys back again.