It started with a comment by MadameGiry25, an exclamation by jack63kids, a typo by Mattsloved1 which was exploited for humour by MapleleafCameo. So for you ladies, I turned them into a 221B.
Disclaimer: Don't own - never did, wish I could.

If he wasn't so worried, John would have laughed.

After all, tumbling down those metal stairs was far from funny, and getting Sherlock to hospital even less so, but the pain medication they had given him had turned him into an uncoordinated, whiney five year old.

On the way home, the overgrown child had insisted he wanted chocolate peanuts, in fact he insisted so loudly that John persuaded the cab driver to stop so he could buy some.

Fortunately John had thought to ring Mrs Hudson, and she was on the doorstep waiting for them, so he hadn't needed to juggle keys and consulting detective to get through the door. Even so, it took nearly fifteen minutes to get him up the stairs, and another ten to get him into bed.

"Want my sweets." Sherlock grumbled petulantly as John prised them out of his hand.

"You'll choke if you fall asleep eating them."

With a shrug Sherlock snatched them back, so John thought it wisest to just make sure he stayed within earshot of his flatmate.

An hour later, the sounds of Sherlock's gentle snoring changed to a whiney "Jaaaaawn! Jawn my sheet's covered in chocolate! And the peanut's missing!"

Rolling his eyes, John pulled back the covers.

Sherlock peered myopically at the bottom sheet, grumbling.

"Took my peanut! Bad bed!"