The other day, in the supermarket, I set down my wire basket of shopping and wandered briefly to another aisle. When I came back it was gone. I asked the cashiers and no one had seen it. The manager checked with the shelf-stackers and they all agreed that another customer must have taken it up.
I wondered what kind of customer suddenly decided that today was the day he (or she) couldn't live without 2 tiramasu, value-pack avocados and 11 Huggies aqua nappies.