That's a head canon thing I accept. But it makes a lot of sense of why Sherlock would be so darn protective of her! That is a terrible theory! But it is a great reason for them to be so protective! I would personally like to Slap Mycroft in the face now!
I always see these quotes about Sherlock wanting to be a pirate and then the fandom draws cute little images of kid!lock dressed as a pirate, but what if Sherlock meant pirate as in modern-day-scary-big-guns-attacking-tankers-and-kidnapping-people pirate?