MARY: We had a premonition that this day was coming, Arthur, and we’ve taken all the necessary measures–never doubt it.

ARTHUR: Oh, stuff and nonsense, Mary. Great-Uncle Geoffrey never told anyone but Millicent the final location of the–well. You know.

(Mary stands abruptly and walks to the grand piano. Her back is to Arthur.)

MARY: Do check the hat stand, Arthur.

ARTHUR: The hat stand?

MARY: It’s hollow, isn’t it?