If you’ve ever wondered why you like both Yes Minister and Clue (the 1985 movie), it’s because they both come from the pen of Jonathan Lynn.

Who can’t hear an echo of Sir Humphrey in this exchange?:

Colonel Mustard: "No" meaning "yes?" Look, I want a straight answer, is there someone else, or isn't there, yes, or no?

Wadsworth: No.

Colonel Mustard: No there is, or no there isn't?

Wadsworth: Yes.