I'm sure this is somewhere already, but I must vent...
People who don't know how to use self-scanners, but still attempt it. If you don't know that you have to scan one thing at a time, and that you must leave all of your bags on the counter until you pay, and that you can't put your purse or your bag or
your baby on the counter, then STAY THE F*CK AWAY FROM THE THING! Seriously! it's not going to save you any time, and it's going to piss everyone off. And while I'm at it, please don't self scan iof you have 100 items. Jerk.
That being said, when people who know how to use a self-scanner (me, for example) do so and it malfunctions. This happened to me last week. I'm on lunch from work, I need about 15 items for my party. Basic stuff - paper plates, napkins, nothing too spectacular. I scan it all in, I slide my card. It gets stuck while processing my payment.
Girl tells me "they've been slow, since we're using a generator right now."
Yeah. Well. The other 5 are working just fine. She reboots the machine, insisting that I won't have to rescan everything. Yeah. Well. That didn't work, I did have to rescan.
Not fun. I'll be watching my bank statement like a hawk next month for a double charge.