The guy who made the knock knock joke deserves a no-bell prize.
No Bell Prize Jokes
Why did the scientist want to take off his doorbell?
Because he wanted to win the no-bell prize.
Did you hear about the person who invented the door knocker?
He won a no-bell prize.
Did you know about the guy who invented knock knock jokes?
He won the no-Bell prize.
Whoever invented the knock-knock joke should get a "no bell" prize.
Did you hear about the guy who made knock-knock jokes? He won the Nobel Prize.
What did the people who cracked the Liberty Bell get for breaking it?
The no-bell prize.