The difference between Sherlock’s face and John’s face: this is not the first time John has seen this happen to a man.
Greg, too. Look at his face. If he’s about 50, then he’s probably been on the force for more than 20 years. 7/7, the 1990s IRA campaign…yeah.
Always thought it was a bit pretentious to say that Sherlock’s London was the battlefield. It’s Lestrade’s London that has the riots and terrorist attacks. Sherlock doesn’t care about those. Not cerebral enough for him.