Are you in retail CAJI? I was till I retired and OMG, there were times when I wanted to tell them to "Go to Hell" or words to that effect...lol, there were the professional moaners you could spot a mile off, then the pro Shop-lifters who could buy and sell you with their knowledge of their "rights", we are far too soft on people who treat us so shoddily and what's worse the Management tend to take the customer side if only to het them out of the store, in one paticular well known store I had a female tyrant of a Manager say,"it's not your money, so let them have it" when shoplifters tried to return goods without the receipt, offer them a credit and then the sparks would fly, not the first time I've had one wait for me when I've finished my shift, luckily Security would spot this and escort you to your car, but for every nasty one their are 10 nice ones.