JOHN: Is this about yesterday, or the time before?
SHERLOCK: Two days ago. When I slammed you against the wall and you tore my clothes off.
JOHN: Yes, quite. It was fantastic. I believe I said so at the time.
SHERLOCK: How did you do that?
JOHN: Do what?
SHERLOCK: How did you seem to just know? It's almost frightening. As if, damn... As if you don't have to think about it at all.