I used to get that quite a lot, it was tough but I grinned and bore it and I got more than my fair share of all that crap. Those days are over now I drop the PE on most who cause trouble - cause when it aint got a PE stamp it aint happening. It's hell for folk who need certification quickly to be hanging around cause I am getting my own back because I had to put up with their BS on the jobsite or whatever. Your time will come don't despair.