Quote from Sally in A Nightmare on Dick Street: Part 1
Tommy: You can't marry her. You're not even the same species.
Dick: She doesn't know that. As far as she knows, I'm like everybody else.
Sally: And eventually she'd figure out you're not like everybody else, and then she and I would have to go for a little "walk."
Dick: You wouldn't.
Sally: Sure, Dick, of course I wouldn't.