I prefer self-checkout, it’s faster and no small-talk. Sometimes items don’t appear to scan with the correct price but it is usually corrected at the end, so I don’t worry about it. Final price seems alright, although I’m not totally aware. I glance at the receipt, is one item missing? Another item is dearer than advertised. It all balances out in the end I think to myself. Check the receipt again properly on the bus ride home. Everything is there, including the one I thought wasn’t before. And the other one really has been overcharged – only by £0.50, not worth worrying about.