Young Male Clerk: Did you find everything you need?
Female Customer: (sighs wistfully) No, I didn’t.
Young Male Clerk: (sincerely) I’m sorry.
Female Customer: Well, that’s what happens when you wait until the last minutes.  You wind up with a book on chickens.
Young Male Clerk: I’ll have to remember that.

Burnsville, Barnes & Noble
Overheard by Merry Cluckin’ Christmas.