Well, the problem yesterday was mainly that there was only 3 of us at an event for 1500 people. I said afterwards that if I'm working as a stage lighting tech, I won't be doing rigging again.
Working as a stage lighting tech is pretty draining if you don't have band's set and don't know what to expect next. You need to listen to the music and prepare for your next move. Knowing a lot of songs helps, but still... There are a lot of things that can go wrong. Add to that that you can only do so much preparation. You can mix the colours, set the positions and create a few effects, but thats about it.