" Tell me why I shouldn’t kill you,” he asks me, almost calmly. I know him well enough to realise he is always calm. Always. Even when he is angry and pissed off. I bet he is even calm when someone he loves dies. It is just who he is on the outside all of the time. The inside? Not so calm. More like a storm on fire with flying trucks in it. "

― G. Bailey , Sinful as Hell (The Demon Academy #1)