Shopping earlier to get a few essentials in a shop i don't often go in so not sure if this is standard practice? Was paying and the guy serving says would you be interested in buying this box of chocolates (£2.50) for the food bank, I was a bit surprised and said, "oh sorry no" he said "I hope I'm not making you feel awkward - we have had other people say no because they can't afford it (??) we do have cheaper items over there, for example pasta is 50p a bag - you can get some of that if you prefer?" Wish I'd have bought the bloody chocolates?? Is this weird or aibu?