Let us pause on this gif set for a moment.
Mycroft Holmes, incredibly important member of the British government and wholly unbothered by caring for the little things, kidnaps the former military doctor and takes him to a giant warehouse just to talk.
Yet for all his aloofness and detached nature he was still considerate enough to get one of his employees to carry a chair right into the middle of the giant hall and leave it so that the limping doctor might have somewhere to sit.
And given that he is a Holmes and knows where the two of them plan to live already it’s a given that he knows the limp is psychosomatic and the chair is utterly unnecessary.
Yet he still made the effort.