What happened to the man who stole an Advent calendar?

This holiday groaner is a perfect example of wordplay. The setup leads you to expect a legal consequence for a petty crime, and the phrase "he got 25 days" sounds exactly like a short jail sentence. The punchline cleverly swaps that punishment for the literal prize: the 25 daily treats hidden behind the little cardboard doors of the calendar itself. It’s a classic bait (Review)-and-switch that plays on the double meaning of the phrase.

The Advent calendar tradition originated with German Lutherans in the 19th century as a way to count down the days in anticipation of Christmas. While early versions were simple chalk marks, they evolved into the paper calendars we know today, with 24 or 25 doors concealing a small picture or, more commonly, a piece of chocolate. This context makes the thief's short "sentence" a surprisingly sweet one.