Knock knock.

Who's there?

Ahtch.

Ahtch who?

Gesundheit.

Is this a riff on Count With Chicken Lady?

I couldn't remember any 'knock knock' jokes aside from 'interrupting cow' and everyone knows it at this point, so I looked up a bunch of them and the only one I chuckled at, went as follows:

Knock knock

Who's there?

A little old lady who

A little old lady who who?

I didn't know you could yodel.

Hell, I'd be wondering all night how the pigeon spoke chickenese, too. 😵‍💫