Jerry: Hey, there's Leo.
Kramer: Oh? Who's Leo?
Jerry: Uncle Leo.
Kramer: Oh, yeah. Right. Uncle, Leo. Forgot his first name.
[As Kramer and Jerry watch him through the book shelf, they see Uncle Leo hide a book in his jacket]
Jerry: Did I just see that?!
Kramer: Well, that ought to keep you busy for a few days, huh?