Fast-food restaurant promotions exist to get customers in the door and to keep them coming back. When Steve and his wife showed up at their regular Burger King for a tasty dinner of Whoppers, they brought along a coupon they had printed from Burger King’s website. It turned out that their local franchise couldn’t accept that coupon. Okay. They could deal with that. It was when the cashier talked up a different promotion, then explained that the restaurant was actually out of game pieces for that promotion, that Steve became annoyed enough to write to Burger King corporate.