Because there have been quite a few excellent fics about Philippa and how she grew up, and the image of her as broken and rebellious and pissed came to mind when I saw this strip.
Headcanon I've never quite explored: the possibility that Arthur is just plain sick of the violence, but he doesn't really know any other way to live.
Yeah.
This one has been reblogged a fair bit. I love Tumblr fandom.