Bucket in a bathtub
The joke is always followed by riotous laughter and Danny usually adds "buckets don't go in bathtubs!" If you couldn't guess Danny made up the joke.
Danny just put Jon to bed and told him a bedtime story (it is 8:20 on Saturday morning) this is the story he told: "Once there was a carrot who lost his family. So he went to the family store and got a new carrot family... And then... He ate some carrots from the store."
This kid cracks me up sometimes.