For the past several months, the guy has really been into puns. And he makes them happen by willfully misunderstanding what others say. Of course, he also often deliver these jokes when we need him to do something.
Here's a fresh example from a few minutes ago.
Katt: Go for it.
The guy: Go for what?
Katt: Go for your bath.
The guy: Gopher my bath?! I bet that would be gross!