Mary Watson: You should have seen the state of the front room. It was like The Exorcist.
John Watson: Huh. Was Rosie’s head spinning round?
Mary Watson: No. Just the projectile vomiting.
John Watson: Nice!
Mary Watson: Now, you think we’d have noticed, when she was born.
John Watson: Hmm? Noticed what?
Mary Watson: The little 666 on her forehead.
John Watson: Hmm, that’s The Omen.
Mary Watson: So?
John Watson: Well, you said it was like The Exorcist. They’re two different things. She can’t be the devil and the Antichrist.
Mary Watson: Yeah, can’t she?
From Sherlock – Season 4 Episode 1: ‘The Six Thatchers’ (4×01)
