Knock, knock.
Who's there?
Crippling depression.
Crippling depression who--?
Me.
Knock, knock.
Who's there?
Crippling depression.
Crippling depression who--?
Me.
Me: Knock knock.
Person: Who's there?
Me: No-one.
Person: No-one who?
Me:...........
This joke does not work in print, you have to speak it to someone.
Knock knock.
Who's there?
Helen Keller.
Helen Keller who?
(Don't say anything).
Helen Keller who?
...you will get a laugh...ty.
Why is September 11th the best birthday ever? No one forgets it :)
By the way, why are there no knock knock jokes about America?
Because freedom rings, but they never answer that door.
(Enjoy!)