I seem to recall, as a child, thinking the pinnacle of humor was:
Knock knock
Who’s there?
Bear
Bear who?
Bare bum!
which was equal with my other favourite joke
My dog has no nose (whisper Say how does he smell)
How does he smell?
Terrible! Hahahahaha.
Children are odd creatures, aren’t they.
Knock, Knock.
Who’s there?
Hank.
Hank who?
You’re welcome.
Don’t forget the last part …
Boo
Boo who?
Don’t cry, the ether bunny will be back next year!
I’ve got one similar to FairyChatMom’s:
Knock knock
Who’s there?
Ether
Ether who?
Ether Bunny
Knock knock
Who’s there?
Nother
Nother who?
Nother ether bunny
Knock knock
Who’s there?
Samoa
Samoa who?
Samoa ether bunnies
Knock knock
Who’s there?
Lotta
Lotta who?
Lotta ether bunnies
Knock knock
Who’s there?
Watts
Watts who?
Wattsa we gonna do with all these ether bunnies?
Knock knock
who’s there?
hatch
Hatch Who?
God Bless you!
Knock knock
who’s there?
Amos
Amos who?
A mosquito just bit me!
Knock knock
who’s there?
Andy
Andy who?
And he bit me again!
No, no, this can backfire in that they might spend a few seconds thinking of a knock-knock joke. What you’re supposed to say is this…
YOU: “Wanna hear the greatest knock-knock joke in the world?”
“Sure.”
YOU: “Okay, say knock-knock.”
“Knock-knock.”
YOU: “Who’s there?”
THEN you get the desired reaction, usually consisting of, “Uh… I dunno.”
When ds was 2, he’d been listening to dd 4 tell knock-knock jokes for a solid month. Bolted in his car seat, he started:
ds-knock knock
me-who’s there?
ds-da
me-da who?
ds-DADDY!!! (squealing with glee)
I was so surprised he got it I almost drove off the road. He hasn’t gotten one right in the past year.
When they demand I start the KK jokes, I just run the litany of the states…
KK
WT?
Miss
Miss Who?
Mississippi
etc., etc., etc.