I went to Tesco’s extra yesterday, and bought myself a Christmas tree. It was pretty heavy, but I was waiting for my car to be cleaned and wanted to sit in the cafe. So I said to the self-checkout guy, “I want to go and sit in the cafe over there. This pots heavy— can I nick a trolley?!”. He looked at me pretty seriously, and responded with, “you can go to the cafe… but no, you cannot nick a trolley”. I looked at him blankly… I couldn’t understand why he seemed worried about me using a...