John responds with a blank look to meet Sherlock's innocent one, but doesn't actually answer because deliberate annoyance deserves no answer. And no answer is needed, for that matter.

"Yeah," he says, waves a hand. "I'm done. Since I need to get to work anyway."

Not that he'd punch Sherlock again even if he didn't need that, but.

His lips twitch.

"It's just a bit bloody, right?"