Some around here hassle people for their receipts near the exit. It was already my least-favorite place to shop for a ton of reasons, so that was enough to stop me ever going. It's one thing at Costco where I agreed to it and they're very fast and nice. I'm not standing in line to get permission to leave friggin' Wal-Mart (yes I know you can just ignore them but they sometimes try to stop you and make a big deal of it and that's just not a situation I want in my day)