Well, when I was a cashier at Farmer Jack, there was this one head cashier everyone called Dragon Lady. She and I had a total Snape-Neville relationship. She stood over me like a vulture my second day on the job, making me totally nervous and flustered, and wrote me up when I didn't check the bottom of the cart FIRST (because she naturally assumed that meant I wasn't going to do it).

Even the cashiers who had been there longer than her resented her for how she treated everyone. She's one of the reasons I ended up quitting after less than a year.