Three guesses what my Tumblr dash is laughing over tonight, and the first two don't count. It's the fact that he was not asked or in any way prodded to do his walk but just got up and did it that really tickled me.
Bonus scene from the Graham Norton appearance. Cumberbatch photobombs himself:
[NSFW]I've spent enough time on AO3 to know where a story beginning with two Cumberbatches is generally headed, and it's not exactly fit for primetime. Probably best to leave it at that.