Frasier: Donny?
Daphne: Donny?
Niles: Daphne? [jumping out of his seat, dropping Roz to the ground]
Donny: Daphne?
Frasier: [to Donny] What are you doing here?
Donny: Well, Niles invited me.
Frasier: Oh, did he?
Donny: Yeah, it was really nice of him. Roz and I had a chance to catch up on old times.
Daphne: Oh, that's right, you two used to date, didn't you?
Frasier: Well, isn't that nice of Niles to organize this little reunion?