Mrs. Hudson: It's a disgrace, sending your little brother into danger like that. Family is all we have in the end, Mycroft Holmes. Mycroft: Oh shut up, Mrs. Hudson. John and Sherlock: D:< MYCROFT! Mycroft: ...Apologies. (love how they care about her)
This scene breaks my heart cause Sherlock thinks its the last time he is going to see John and he wants to say so much but what he wants more than anything is to see John laugh!! Look at him! He is MEMORIZING John’s laughter!!<---That.
John and Mycroft <-- Sassy John! Has nobody noticed? Mycroft tells Anderson to "don't say anything and scuttle". A minute later when junkie Sherlock attacks mycroft. John tells him to "shut up amd just leave". And mycroft does.
I know this is annoying to John, but I like to appreciate this. Sherlock takes his time to tell Anderson, Lestrade, and Donovan they're idiots. Yet, after a time, he believes John to be on par with him. Sherlock used to make fun of John all the time with an exasperated tone. Here, he respects John to the point of believing John as observant and analytical as he.