"Sherlock, get up."

"Why?"

"I'm going to wash your hair."

"I washed it last night."

"Did you, now?"

"Would I lie to you, John?"

"Yes."

"I did wash it."

"I'm sure you did."

"Then why did you ask?"

"Because it's filthy."

"It's not."

"What did you wash it with?"

"Shampoo, conditioner."

"Well, you might as well have used toothpaste, looking at the state of it. Come on."

"But we're not going anywhere."

"You're going to get milk."

"Am I?"

"Yes. Get up."

"No."

"Fine. Oh, by the way, could you pass me my gun...?"

"I'll get the hot water running."