This may seem insane to some of you, but this is one of my favorite jokes, for lack of a better word. It’s that sort of sitcom situation that is enhanced when the actor has great timing. Unfortunately you have to imagine that Jo is a comedic genius. (which she is.)
I’m super tired so I’m just going to leave it at that for now. If I think of anything else I’ll ad it when I wake up. Until then, I’ll see you in the comments.