I like to think these moments are where they (supposedly; where do I remember hearing this?) cut lines that were intended to be John’s opportunity to show humor, but Martin Freeman thought they were too showy. So instead they just replaced them with John saying Sherlock’s name in that resigned, oh-we’re-doing-this-again voice and it’s just a little John Watson-sized pile of perfection.
I love the “Sherlock. Timing.” Which is John-speak for “I know this gets you off but my God can you wait to wank over it when you’re out of this poor traumatized man’s presence? Jesus.” So much said in so little, and yeah, it’s just perfect.