[Sherlock is sat in the corner of the room attached to the plumbing pipes that lead into the en suite bathroom with ziplock ties at his ankles and wrists. He has on a blindfold, army fatigues, and dog tags. He tilts his head at the sound of the door opening rather than at his name.]

John, good of you to join me.

[He grimaces, voice matter of fact.]

I strongly advise you to hold your breath while untying me, two days of stationary confinement does not allow for a pleasant odour.