"(Elderly couple, Mr A and Mrs B are staring through french windows at a cat that is sitting in the middle of their lawn motionless and facing away from them. A car is heard drawing up.) Mr A: Oh good, that'll be the Vet, dear. Mrs B: I'd better go and let him in. (Mrs B goes out and comes back into the room with the Vet) Mrs B: (stage whisper) It's the Vet, dear. Mr A: Oh very glad indeed you could come round, sir. Vet: Not at all. Now what seems to be the problem? You can tell...