I was just at my local coop, I used the self service check out and selected one bag as I thought all my items would fit in one, as I put them in it wasn’t going to fit, I had already paid so just grabbed an extra bag as there was no option to pay for the extra bag as I would have to remove all my shopping and had nowhere to put it, yes I know I should have paid but I had just spent £30 in the shop so for the sake of an extra bag I didn’t see the big deal, anyway as I went to walk out the security shouted at me in front of everyone that I had taken two bags and paid for one! I was made to go back and empty out all my shopping. AIBU for thinking this was really petty? Considering how much I had just spent in the shop it all seemed a bit over the top