I was queueing at the checkout yesterday. A woman in front, with a loaded trolley, suddenly dashed off down one of the aisles. I assumed she'd just gone to get something she'd forgotten and as the man in front of her was still checking his groceries through it was no big deal.
However, a few minutes later he'd paid and was leaving and there was still no sign of her so I went in front and started loading my groceries onto the belt. She arrived back when I had about half of them unloaded, with an armful of extra items she'd collected for her trolley, and looked really annoyed with me. I just ignored her, finished unpacking my stuff and paid. As I went to walk off she said loudly 'I see she's not even going to apologise for skipping the queue'.
I ignored her again, but AIBU to think that if you go off for several minutes leaving your trolley unattended you can't really expect the people behind you in the queue to hang around waiting for you to return?