Even within the game and the lore book, there are plenty of gaps or things like unsaid that leave room for industrious roleplayers to fill with ideas, theories, assumptions, and weirdness that collectively get referred to as 'headcanon'.
So what is your favorite - one that you've come up with to fill in something for your character's backstory, something you've heard from other folks, something you sometimes forget is not actual canon?
So what is your favorite - one that you've come up with to fill in something for your character's backstory, something you've heard from other folks, something you sometimes forget is not actual canon?