Marge: It's a beautiful birdhouse.
Lily: Oh, look, a bird's moving right in.
Art: Did you bang down the nails on the inside before you put on the roof?
Marge: Art, please. Can't we just enjoy that beautiful bird moving into that beautiful birdhouse? Oh, look, look. He's poking his head in.
(The bird falls to the ground dead)
Marge: That poor bird.
Tommy: I'm gonna... take the roof off, hammer down those nails.