A lot of weird stuff happens in Tesco Express. Put a 24 hour shop in the middle of a student area and this is what will happen. I have lived very close to it for two years now and have observed many a strange activity. But I had not, until yesterday, seen a man buy every single item of cat food from the shelves in one transaction. It filled about a dozen carrier bags. And was then capped off by the man in question picking up a Kit Kat as his final item and putting it in his top pocket.