Missing milk
Ah, here we are, the misplaced milk carton. I think that I left mine in the cleaning cupboard, and once even outside on the deck when I was distracted by the phone ringing. We were constantly on the hunt for milk for 9 months.
In this case, at least there seems to be some sort of logic to where the milk has been left. It is by a photo of a coffee cup after all. How long do you look for the milk before you give in and open another carton, though?