Taking everything out of the basket when I am not only clearly already doing it myself, but as if I am totally stupid and the fact I am wearing glasses means I am totally blind and cannot see everything that's in there for myself when I get through the contents of the basket.
Generally treating me as if I am thick, like earlier.
This woman was being generally picky and demanding, and then I came to these 2 pairs of shoes for her kids. "Can I have each of them in a separate bag, please?" Not a problem...So I scanned the first pair, put it into a bag and gave it to the first of her 2 kids. "And the same for the other pair" as if she hadn't already told me or as if I have the memory of a f***ing goldfish.
When customers come to my till asking to refund/exchange, I say "I'm sorry but you'll need to go to customer services on the third floor"...Nearly every time, they then ask, "And where's that then?" *facepalm*
I had a woman today come to the till, taking ages to decide over a £1 pair of socks and asking me whether or not I thought they'd fit over her large legs.