Knock, Knock

Have you heard an old folks joke called the knock knock joke? No?? Ok then, here are some examples of the knock knock joke.....

Knock, Knock.
Who's there?
Hoo.
Hoo who?
You talk like an owl!

Knock, Knock.
Who's there?
Water.
Water who?
Water you doing in my house?

Knock knock.
Who's there?
Hawaii.
Hawaii who?
I'm fine, Hawaii you?

And I've be able to create one knock knock joke... I hope you like it...Here it goes.....

Knock, Knock.
Who's there?
Police.
Police who?
Police stop telling these awful knock, knock jokes!

THE END