- Arabella: Monica Drew wasn't expelled when she burnt down the gymnasium.
- Miss Fritton: The gymnasium was insured! The sports pavilion was not.
- [an explosion has occured in the Chemistry room]
- Miss Fritton: Oh dear. I told Bessie to be careful with that nitro-glycerine!
- Miss Fritton: [on entering the staff room that has a heavy pall of cigarette smoke] Oh, this place, always reminds me of a ladies powder room in Port Said.
- Supt. Kemp-Bird: You wouldn't mind giving me the name of your phyciatrist, would you?
- Manton Bassett: Delighted, old chap.
- Miss Fritton: In the other schools girls are sent out quite unprepared into a merciless world, here it is the merciless world which has to be prepared.