“Previous.” Sherlock looked up, eyebrows slightly raised. They were back in 221B and he was still puzzled about how the murder had taken place. “You really said previous commander.” “Yes.” “You’re not my commanding officer, you know?” Sherlock did not even bother to answer. It was quite for a long time, then: “Come here.” John came, Sherlock grinned. “Down on your knees, I need your help.” John was halfway on the floor when he raised his voice. “What for?” Sherlock chuckled. “Proving a point.”