Niles: Frasier, do you really think it's healthy for a little boy to be so obsessed with a woman he can't possibly have?
Frasier: Niles, have you actually sunk so low as to be jealous of him?
Niles: No, I'm not jealous. I'm just a bit... Well, maybe envious.
Martin: That's ridiculous. What have you got to be envious of?
[Daphne gives Freddie a piggyback ride through the living room]