"Oh, I will." Sherlock pulled away his upper body from John, so he couldn't undo any more buttons. His lower half was still pinning John against the wall.

John may have been a solider, but Sherlock was also well versed in take down techniques.

He swept his leg under Johns, taking his legs out from under him. He was over him in a flash, using his body and his superior weight and height to pin John down.