Peter Capaldi has been best known up to now for his foul-mouthed tirades as Malcolm Tucker in The Thick of It. It had been assumed that he would drop F-words when he takes the starring role in Doctor Who, as announced on Sunday. However, the Daily Telegraph reports that at least one of his predecessors had form for swearing in the role. Apparently a collection of out-takes from the show exists in which Tom Baker has the following conversation with robot dog sidekick K-9: The Doctor: "[We're] clicking towards oblivion. How long K-9?" K-9: "Insufficient data." The Doctor: "Yeah, you never ------- know the answer when it's important." So will it be "Fuckity-bye Daleks" from Capaldi then?