- Superintendent Sugden: [referring to the missing diamonds] They definitely only were missing, but only two people could have done it, and one of them might have done it as a joke.
- Hercule Poirot: I have yet to meet anybody in this household that has even the most rudimentary sense of humor.
- Simeon Lee: You don't look very tough.
- Hercule Poirot: Hercule Poirot is a detective not a bodyguard, monsieur.
- Hercule Poirot: Ah, chief inspector. You have been thinking again. I have warned you of this before.
- Japp: Oh, well.
- Japp: You've seen a ghost or something, Poirot?
- Hercule Poirot: Chief inspector, I might just have done precisely that.
- Simeon Lee: [Telephone rings] Hercule Poirot?
- Hercule Poirot: Yes, it is I Hercule Poirot who speaks.
- Japp: Very violent sort of blokes, these Africans.
- Hercule Poirot: Europeans do not figure too badly in the arts of violence, Chief Inspector.
- Japp: What are these bloomin' things, Poirot?
- Hercule Poirot: Ah. Now these are the miniature gardens of Madame Alfred Lee.
- Japp: What's the point of havin' a miniature garden? I mean, you can't do anything with it, can you? You can't take a deck chair out and sit it in.
- Japp: Ah, but it gives you the creeps - this place, doesn't it?
- Hercule Poirot: You are too sensitive, mon ami.
- Japp: That's true.