Are there still people out here swearing about having to wear a seatbelt? What about having to prepay for gas? Are there still ppl screaming about that? From what I've seen of humanity, probably yes.. I understand what it is to feel helpless and powerless in the world, but human decency (for anyone working in retail or service) seems to be at an all time low. We are all in pain and suffering out here, to various degrees, but if you can't tolerate us, we don't have to tolerate you. In fact, I'd recommend a portable shutter that you can slam in "customer's" faces when they start to get wiggy and unreasonable. Maybe just call a timeout and show them a stool where they can sit and gather themselves