Karen has been in high school for all six seasons of the show thus far.
The title is from the Frank Capra screwball comedy It Happened One Night (1934) that starred Clark Gable and Claudette Colbert. The film was the first to win all five major Academy Awards (Best Picture, Director, Actor, Actress, and Screenplay) and held that record for forty years until One Flew Over the Cuckoo's Nest (1975).