The punchline is too long.
Did you ever notice he seems to start off all of his jokes in one of two ways
Because 7, 10, 11!
Want to hear a clean joke? Bob took a bath. With Bubbles. Want to hear a dirty joke? (Punchline hidden so you don't accidentally read)
I think it's because usually the punchline is too long
The punchlines are too long.