A whole lunch may be a bit much unless it’s some sort of pre-packaged food, but a few I have seen over the years: - Grab-and-go sandwich from local vendor was

A whole lunch may be a bit much unless it’s some sort of pre-packaged food, but a few I have seen over the years: - Grab-and-go sandwich from local vendor was eaten by wrong person. They had a similarly wrapped sandwich in the same refrigerator. - Identical brands of yogurt, milk, cream, etc. were used by a non-owner with a similar bottle. - Similar fruit was taken. - Identical brand peanut butter was used by the non-owner. None of these other than maybe the sandwich are like the original post, but these mistakes do happen. In these cases, it was always resolved with an “oops, sorry” and a replacement item (sometimes waved off)... and usually more deliberate bespoke labeling or containering of common items.