[lingstar]

Morning,

In knock-knock jokes, normally the instigator waits for the second person to say,

(whatever) who?

ie,

Knock knock, who's there?

Ammonia.

Ammonia who?

Ammonia a bird in a gilded cage.

or,

Knock knock, who's there?

Who's there?

Tank!

Tank who?

You're welcome!

-----------------------------

In the above cases, it's courtesy (and part of the joke) to wait for the second person to say, blah blah who?

Unless you're impatient (and hence can't wait), a cow, and can only "moooo."


So! It's

First person: Knock knock

SEcond person: Who's there?

First person who's really a cow in disguise: Impatient cow

Second person: Impatient...

First person who's really a cow in disguise: MOOOOO!

See?

I guess you had to be there. :-)

Best wishes,

Barbara