It is John’s habit to pull the door closed by the knocker, making it hang to the left. But notice that Sherlock’s practice is not to adjust the knocker to the left, but to the right. He’s annoyed to see that Mycroft has straightened it. To Sherlock’s mind, it should hang to the right if he is at home with John, or to the left, if John is out.
These little tiny details are what take this show to some next level shit.
I had a man once. A good man. Bruni, his name was. I was his and he was mine. But one night Bruni disappears. People said he left me, but I knew him. He’d never leave me. Not for long. I knew he’d come back. And he did. He came in through the back of the hut. Only it wasn’t Bruni. Not really.
(requested by anonymous.)