[Bud and Lou are singing "The Twelve Days of Christmas". Bud skips a verse, and Lou stops him.]
Lou: Wait a minute! What about the eight maids a milkin'?
Bud: Oh, they're in there.
Lou: Whaddaya mean, "they're in there"? The song went right from seven to nine!
Bud: That's right -- it lacked eight.
[Lou looks flustered, but they continue the song -- skipping the eight maids in every subsequent verse.]