Oh please please someone tell me, I can't post this until you do.
Basil: And Mrs Abbott, how do you do?
Mr Abbott: Doctor Abbott, actually.
Basil: I'm sorry?
Mr Abbott: Doctor Abbott.
Mrs Abbott: Two doctors!
Basil: You are two doctors?
Mrs Abbott: Yes.
Basil: Well, how did you become two doctors? That's most unusual. I mean, did you take the exams twice, or ...?
Mr Abbott: No, my wife is a doctor.
Mrs Abbott: I'm a doctor!
Basil: You're a doctor, too! So you're three doctors.