I'm behind a woman checking out in the supermarket, she has a well filled trolley so it's taking a while to process. When all done, she flashes her CC, doesn't work... she's spent £107, too much for tapping. Guy on the till tells her to use her PIN, she declines saying £100 is her limit. She than starts going though her packed bags, pulls out some sweets, the guy knocks off 85p, then cans of something, another £1.10. This goes on for about seven minutes with her occasionally changing her mind and putting stuff back. Everyone behind me has buggered off to another till. Eventually it's all done and she apologises to the till guy, he tells her "It's the guy behind you you should apologise to"...she didn't.