Ann: Look, Harry! That policeman's waving to you. He wants you to stop.
Policeman: Where do you think you are? On a race track?You must have been driving at seventy miles an hour.
Harry: I can't have been.
Policeman: I was doing eighty when I overtook you.
Policeman: Didn't you see the speed limit?
Harry: I'm afraid I didn't, officer. I must have been dreaming .
Ann: He wasn't dreaming, officer. I was telling him to drive slowly.
Harry: That's why I didn't see the sign.
Policeman: Let me see your driving-license and your insurance certificate.
Policeman: I won't charge you this time. But you'd better not do it again!
Harry: Thank you. I'll certainly be more careful.
Ann: I told you to drive slowly, Harry.
Harry: You always tell me to drive slowly, darling.
Ann: Well, next time you'd better take my advice!