Harry: You realize, of course, that we could never be friends.
Sally: Why not?
Harry: What I'm saying - and this is not a come-on in any way, shape, or form - is that men and women can't be friends, because the sex part always gets in the way.
Sally: That's not true. I have a number of men friends and there's no sex involved.
Harry: No, you don't.
Sally: Yes, I do.
Harry: No, you don't.
Sally: Yes, I do.
Harry: You only think you do.