Quote from Kramer in The Sniffing Accountant
Kramer: Well, what else? Was he nervous? Did he use a lot of slang? Did he use the word "man"? Jerry: No, he didn't use "man". Kramer: I mean, when he was leaving did he say "I'm splitting"? Jerry: No, but in one point he did use the bathroom. Kramer: Whoa! Jerry: You think that's a bad sign? Kramer: Yes! Yes, that's what they do! They live in the bathroom!