"The Devil You Know" is the twelfth episode of the BBC comedy series Yes Minister and was first broadcast 23 March 1981. In this episode, the final ' Yes Minister ' is uttered by Sir Humphrey Appleby.

Jim Hacker is not best pleased. Each government department was to place its own separate order for word processors, and the Minister had persuaded all of them to let his Ministry of Administrative Affairs place a single combined order, thus allowing for British investment in technology. However, an EEC directive from Brussels has put a stop to it and invited the Minister to attend a word-processing conference to find a common approach. He bemoans this to Sir Humphrey Appleby and Bernard, who are able to offer little except to confirm the state of affairs. Sir Humphrey tells Hacker that such directives are the price the country pays for "trying to pretend" that it is European. The Minister states that he is pro-Europe but anti-Brussels, and suspects that his Permanent Secretary is vice versa. Hacker lambasts Sir Humphrey for his view and reminds him that the European ideal is designed to avoid narrow self-interest. However, Sir Humphrey points out that this was precisely the reason that countries joined it. They continue to debate the pros and cons of the EEC, with the Minister deriding the Brussels "gravy train" and the civil servant defending it. In any case, Sir Humphrey indicates that it was Basil Corbett, one of the British Cabinet, who alerted Brussels to the Minister's plan. Hacker is frank with his vitriol concerning Corbett and for once, Sir Humphrey is in agreement. The Minister wonders why his colleague took this action, and Bernard hands him a newspaper that provides the answer: there are rumours of a Cabinet reshuffle. This makes Hacker extremely worried and he seeks reassurance from his officials that he has been a good minister. They agree that he has "done alright".

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