One Christmas Eve, Santa's reindeer had been unusually boistrous and when he came out to hitch them to the sleigh, he found them all tangled up in a huge heap. He panicked: how to deliver the presents?
Fortunately, one of the elves had become an expert with an old surplus Rubik's Cube. The deer went spinning and flying a few times, but eventually they were separated. The presents were delivered, as usual, on time.