John Watson<-- the funny thing about these pictures is that he's rather mad at Sherlock during this scene, but you can't tell out of context. I just found it kinda neat. (He's actually really mad with Sherlock in this scene.
Because he doesn't like killing. He craves the danger but he doesn't like the idea of killing even the dog. That's why he closes his eyes. < also most people just close their eyes when then shoot a gun.
From now on I want my coffee served by this man and with that smile! And did I mention I drink at least 5 cups a day? It'd be simplest if he just moved in with me :)(Oh that face is possibly the cutest thing ever!