This was ours:

Knock knock
Who's there?
Just a little teddy bear.
What do you want?
Just a beer.
Where's your money?
In my pocket.
Where's your pocket?
In my pants.
Where's your pants?
In my closet.
Where's your closet?
In my house.
Where's your house?
Around the corner.
What's your number?
CUCUMBER!