Yes, Prime Minister1986

Jim Hacker:
Bernard, I really don't want Humphrey putting his head round the door during this meeting.

Bernard Woolley:
Well, I'll do my best, Prime Minister.

Jim Hacker:
That may not be good enough, Bernard. Dorothy tells me that technically Humphrey's supposed to phone you from the cabinet office before he comes through to Number Ten; is that true?

Bernard Woolley:
Well, perhaps in theory, but it's really just a formality.

Jim Hacker:
Good. Humphrey likes formality.