Going a bit (more) OT, but just to put things into perspective:
We did a wedding recently for £500. Turned up, set up, easy. DJ walks in and asks straight away if he can use our PA. We say no so he uses the hotels rig. After messing about with crackly leads (all through the house PA, so loads of loud popping and generally not-very-pleasant sounds, for about half an hour he asks us to cut our soundcheck short so he can continue to mess about. Eventually, as guests were starting to arrive, our guitarist (professional sound engineer) had to help him set his CD player up as he didn't know what he was doing.
Later found out he "earnt" £300, couldn't even be arsed to bring his own PA
Think we're in the wrong trade?