Once met an old bloke at the checkout, who was turning his then free bags inside out, when I asked him why, he said that they didn't pay him to walk down the street advertising their shop. I also had an argument with a used car salesman, he'd had a sticker put in the back window, a vinyl badge put on the tailgate & logo'd number plates put on a car I was about to buy, when I asked for £50 off he refused, so I gave him the option, pay up, take the logo's off or I don't want the car. I went & bought another one privately, far better deal in the end.