John: Are you gonna tell me what’s going on?
Sherlock: I expect so. Now go.Oh such a glorious moment. Not only does John accept that Sherlock has this under control and that he will fill him in on the details later (“What happened to Mrs Hudson? Why is this guy bleeding and tied to a chair? Are you sure you’re okay with that gun? Oh, you’ll tell me later?… okay.”), but that little smile he does just before he walks out, like he’s saying to the CIA guy ‘you’re about to get fucked up, you idiot.’ I mean sure, the American hurt Mrs Hudson which is a no no, and he threatened to shoot John, but that little smile is like him accepting that Sherlock could cut this guy’s limbs off one by one and John wouldn’t give a shit. ‘You hurt the people I love, you’re fish food for all I care’. His dubious morals are so fucking fascinating. John Watson is not the cuddly, happy, soft centred guy with the heart of gold people take him to be. He’s a killer. Fact. And that isn’t what keeps him up at night. He’s okay with that side of himself. Injustice is what he can’t stand. People actively trying to harm him or those he cares about. And he will kill for what he believes in. It’s black or white for him. If you are guilty, you’re (as good as) dead (like Irene. He doesn’t give a shit that she’s she’s supposedly dead. In fact he’s probably pretty chuffed). Which is a bit not good sometimes. (But also exceedingly important for series three when Sherlock comes back)