It ran out of juice.
Because they can only count to 3.
Society.
Ten naked men running around in a circle and the first one stops.
Because it's harder to run in squares.
Because the horse hugs the rails the jockey puts his arms around the horse and you can kiss your money goodbye!
It ended in a tie.
A Jiraffa.
Because she wasn't peeling very well... All credit to my 8 yo son who suggested I post it here
It just ran out of juice.
They ran out of juice!