UD's right again. Just go with the flow. This bad stuff even happens in brickwork. Years ago I got mad and it came to getting in the guy's face and that works in construction. Of course I had a 350lb son with me sometimes, Ha! Ha! I always got my money.
However, as I got older I got smarter. I'd keep my mouth shut and sure enough they would call me back because I was easy. But the next time I'd charge a little more. After about 2 more next times I got my money back and after that it was like getting a raise because I never did lower my price down again. That system works best.
Just get through the job (ok ok gig),like Uncle Dave said, but don't let it happen again. Be prepared next time and get a bit more.
At least your not moving 375lb bundles of brick around not to mention lots of cement, sand, scaffold and plank etc. Music sounds easy now eh?
Do like Dave and have a good time. At least he seems to really enjoy what he's doing. Don't get so up tight. One bad job (ok!ok! one bad gig) isn't the end of the world. Sometimes I got stuck on a bad brick job for weeks. Eight hours a day five or six days a week. Talk about misery!!!
_________________________
I'm not prejudiced, I hate everybody!! Ha ha! My Sister-In-Law had this tee shirt. She was a riot!!!