"Clearly the best course of action is to take it case by case. Some jobs it may be best to have you on stand-by Crash, others it would be best to have you right next to us... and there may even be cases; drekruns, cakewalk, or just cheap as Johnson's... where, if you wanted to come, you would have to volunteer your time. I haven't been doing this long, but somehow I don't think every run will be a lucrative as the one that fell in our lap the other night."