Alec Lightwood: I need to get back to the battle. You're a warlock. Can't you, I don't know, fly me back to the boat or something? And fix my concussion while you're at it? Sorry, I know you don't have to help us out—it's a favor...

Magnus Bane: Stop. I don't do you favors, Alec. I do things for you because—well, why do you think I do them?