"I'm not saying that we're drift compatible but if you do the exercise, maybe you'll find out just why these recruits aren't right for me." John takes a step closer and pushes the rod against Sherlock's chest. "Or maybe you'll believe me when I say that even if someone is compatible, and I doubt it, they're not going to want to drift with me."

Damaged goods, Sherlock. That's all John Watson is. Don't you see his arm? That's a physical reminder of what happens when your partner and co-pilot can't keep up. When they become out of alignment with you for even a second.

John won't risk it again for anyone less than perfection.

"So fight me. You know the technique. You'll know it better after I get my four taps." He doesn't mean to be this cocky, but he's got adrenaline running through him. And not a hand tremour in sight. John leaves Sherlock with the stick and heads to the wall to pick up another before he turns to beckon the younger man on.