ROBERT: I'm just going to the toilet, in case you're wondering. That's all, actually. I just wanted to have a bit of a pee.                                     MARK: Well, would you like a drink?                                                   ROBERT: No, no, I think I'll manage!

MARK: (talking about condoms) They're tricky things to put on, aren't they, especially the first time? Do you know, a mate of mine warned me, I should practice on my own.                                                            ROBERT: You mean, you'd been practicing on his?