uber-chunks:

Can we take a close look at this scene, and see how hard John is imitating Sherlock?

• First off, his mannerisms are cold and harsh. He’s blunt, rude, and unsympathetic. Remind you of anyone? 
• He paces while Mary sits and comforts their “client”. Their poses are exactly the same as it would be in 221B. Sherlock would pace and John would sit and comfort with tea.
• John and Mary’s living room could have looked like anything. But instead its a mirror to 221B. The couch, the coffee table. Right down to the window. Maybe the set designers are just not that creative, but I somehow doubt that.  
• John’s bathrobe. It’s blue, its stripey, and the same style favored by a certain high functioning sociopath. To me this was the biggest slap in the face about this scene. 

The parallels are painful. John is Sherlock. When Sherlock gets bored, he’s rude and does stupid things (like sulk and shoot walls). When John gets bored, he storms a crack house with a tire iron. They’re both junkies. They crave stimulation. Whether it’s cocaine or adrenalin, the rest of the episode just enforces how badly they both need their fix.