Frasier: Say, where's- Where's Carla?
Norm: She asked us to lock her in the office until the heat wave breaks.
Frasier: For goodness sakes. I mean this has gone on long enough. The human female doesn't have an estrous cycle. Someone is gonna have to tell her that the weather cannot affect human beings this way. [knocks] Carla! May I have a word with you, please?
[After Frasier opens the door, Carla pulls him into the office. A disheveled Frasier emerges a moment later, closes the door and locks it shut.]
Norm: How is she, Fras?
Frasier: Be afraid. Be very afraid.