The Hounds of Baskerville - S2-E2
Sherlock: I never did ask, Dr. Frankland, what exactly is it that you do here?
Dr. Frankland: Ah, Mr. Holmes, I would LOVE to tell you, but then, of course, I'd have to kill you. [Chuckles].
Sherlock: That would be tremendously ambitious of you.
Chosen answer: That line of dialogue has never actually been spoken in any of the Sherlock episodes, during seasons 1-4. However, that line is written in someone's fan-fiction story online, where it's said by Sherlock and directed at Anderson.
Super Grover ★