How about this, then: if I don't have any ones in my purse, this is because I have spent them on things already (since in the past, my purse has contained singles, and that is the typical method by which they depart). Assuming I really want the M&Ms, I might resent the fact that I made other spending choices in the past that caused the lack of ones. Finding the one is news that I did not make (all of) those resented choices.