I just wanted to say that this is hilarious. That I was having a great day (I love being busy). Also I'm a fast cashier (800-900 IPH) and most customers not only know this but love me for it.
We had a break in the day when it was dead for a few minutes. I get a customer (woman), her mother, and daughter. The mother gets through my line fine. The woman then has a cart over flowing with food (she later paid with EBT). Everything is fine at first. I'm ringing everything up but then my triangle gets full. There is a line of 10+ people behind her, we now have back-up cashiers up front, and the woman's just staring into space. I do as I normally would and put the bags into her cart. Half way through the giant cart of groceries and she starts freaking out on me. That I wasn't supposed to put the items in her cart, that she wanted to do it, that I was wasting bags by not packing them full and then double bagging them. I respond kindly that if she had wanted all of that she could have explained to me earlier and all would have been well. I let her do her own thing. Her mother then tells her to not "have a conniption" which sends her to flip out even more. The customer behind the two then says to the mother "I wonder who'll break first the cashier or your daughter?" Once she's done paying she has two more transactions. She has a shirt on the belt first and then a pan. I ring up the shirt first and went to continue with the pan thinking they're both together. I was wrong. She flipped out on me that she wanted the pan first and they were separate. I then tried to be nice 'cause everything I was doing was "wrong" and thus the woman freaks out even more saying I'm being "sarcastic" with her. After I'm done the customer, who made the "who'll break first" comment asked "what was up with the pan being first and separate?" All I could respond with was "I have no idea". My co-worker told me I handled it well and I told her that she was my witness.
And guess what? A [CSM/CSS] later pulled me aside to say I had a complaint (which was the above woman). I explained that there were problems, that I was not the one to cause them, and to ask my co-worker if she needed clarification. Later I spoke to a different [CSM/CSS] about it who told me that the woman's mother was standing behind her rolling her eyes as the woman told the [CSM/CSS] what happened. That the woman comes in ALL the time and starts stuff.