The only two jokes she knows

My wife only knows two jokes. One of them is a knock-knock joke, and the other one is off of a Laffy Taffy wrapper.

1) Knock, knock.
Who's there?
Interrupting ___________ . (insert some animal or basically anything, like a crow, an
octopus, or the classic cow).
Interrupting !!!!!!!!!!!!!! (insert the animal sound or distinctive action of whatever is
interrupting)

2) What's green and makes holes?
A drill pickle!

However limited my wife's joke arsenal maybe, her memory is not the issue. She can remember every single phone number she ever dials. We don't have a cell phone, so don't have the help of a machine to store numbers. Here is where my wife comes to the rescue. I just think out loud, "I wonder what the interrupting cow's phone number is?" My wife then replies, "1-800-MOOOOOOOOO," or whatever.