Monty Python's Flying Circus, Series 1

Encyclopedia Salesman:
Burglar! [rings again] Burglar!

[woman appears at other side of door]

Woman:
Yes?

Encyclopedia Salesman:
Burglar, madam.

Woman:
What do you want?

Encyclopedia Salesman:
I want to come in and steal a few things, madam.

Woman:
Are you an encyclopaedia salesman?

Encyclopedia Salesman:
No madam, I'm a burglar, I burgle people.

Woman:
I think you're an encyclopaedia salesman.

Encyclopedia Salesman:
Oh I'm not, open the door, let me in please.

Woman:
If I let you in you'll sell me encyclopaedias.

Encyclopedia Salesman:
I won't, madam. I just want to come in and ransack the flat. Honestly.

Woman:
Promise? No encyclopaedias?

Encyclopedia Salesman:
None at all.

Woman:
All right. [she opens door] You'd better come in then.

Encyclopedia Salesman:
Mind you, I don't know whether you've really considered the advantages of owning a really fine set of modern encyclopaedias... You know, they can really do you wonders.