Sherlock Holmes (about Greg’s date): Trust me, though, she’s not right for you.

Greg Lestrade: What?

Sherlock Holmes: She’s not the one.

Greg Lestrade: Well, thank you, Mystic Meg.

John Watson: How do you work all that out?

Sherlock Holmes: She’s got three children in Rio that he doesn’t know about.

John Watson: Are you just making this up?

Sherlock Holmes: Possibly.

From Sherlock – Season 4 Episode 1: ‘The Six Thatchers’ (4×01)