This isn't exactly annoying, just more... confusing, than anything. I had a woman come in today, to return a 79p pen. She had thought it cost £2.59, and did not want it at the cheaper price she had paid the day before. She accused me of having lowered the price just for her, that 'as soon as I walked into this shop the price magically plummeted for me' (for some reason this offended her), saying that I had 'cheated her' (eh?) and that she didn't want some cheap-ass clearance pen. SHE HAD SPECIFICALLY ASKED FOR THAT PEN! She even brought in one so we could find it for her. I mean, it's not my fault she didn't read the price label. Most people would've been happy to find out something was cheaper than expected, and often buy extra to stock up, but hey. Can anyone explain how this offended/upset her? She seemed really quite posh, in that elegant grandmother sort of way, so maybe that had a part.