@alcox2010 : I've had several cashiers at Walmarts who didn't even know how to do that. I'd look at the register and say "hit that button", and I was always right. I had to tell one guy how to get the security device off (I ended up doing it for him, and showing him how), and I had to tell another one which bar code was the one she needed to ring me up. That, however, is a fault of management for not explaining the job before they stuck them on the floor though, esp this time of year when a bunch of them are Xmas help.