A/N- A 221B drabble written for the prompt 'border.' Also, I was doing some experimenting with the format. Thanks to my betas Rena the Pirate Wizard Jedi and Redkilstiltkin. Hasn't been edited for Americanisms, so anything not caught is my fault. Reviews are much appreciated, as I am new to writing for this fandom.
Disclaimer- Don't own anything.
Border
For someone very comfortable with housebreaking and taking the possessions of others, Sherlock could be very territorial.
The first time Mycroft returned home from university, he'd discovered Sherlock had created a map of the house, every room painstakingly labeled 'Sherlock,' 'Mycroft,' or 'neutral.' ("I had signs, but Mummy made me take them down.")
To say Sherlock had been displeased when his brother disregarded this floor plan would be an almost criminal understatement. Sherlock had been furious. ("I like it better when you're not here, anyway!")
At present, Sherlock no longer throws screaming fits if Mycroft appears without notice in his territory (and Mycroft rarely (never) appears with any notice). Although, it is less Sherlock no longer throwing fits and more he no longer screams. Sherlock will pluck his violin, conduct experiments, and generally do anything to prove just how much he is ignoring Mycroft's presence.
Sometimes, Mycroft thinks the ignoring is worse. At least when Sherlock screamed at him, he acknowledged his brother existed. Nowadays, the only way to manage that is to show up at a crime scene, and the reception is lukewarm at best, if one wants to be generous. ("Shouldn't you be rigging an election somewhere?")
Sometimes, Mycroft is envious of John Watson. He isn't sure how, but this man has managed to get past his brother's borders.