Knock knock. Who's there? Otto B.

Otto B. who? Otto B. a crime if you didn't laugh at that groan-worthy pun!

Knock knock. Who's there? Otto.

Otto who? Otto know by now that Otto-matically, I'd bring an out-of-this-world pun like this right to your door!

Knock knock. Who's there? Wu

Wu who? Wu don't know, I'm having an identity crisis

Knock knock. Who's there? Ismael.

Ismael who? Ismael a rat in here, or is this just the *cheesy* aroma of my latest pun-demic?