As a cashier I have various things that I have to watch out for and it still boggles me as to what tries and..in some very horrid cases..gets pulled on me. Anyone that deals with the public has their own, as the doctor once put it, universe of terrors to face. The main thing to think in your head is that you cannot please everyone. The only thing you need to please is god. If your rules that you must follow make someone angry then don't falter just to make someone happy. I take solace in knowing that as a child of god anyone that comes against me will not go without problems later on. Justice is out there..you just have to know that it will happen when the time is right.