That doesn't sound like anything physical happened. This could be entirely different.

[Now he's just arguing because he's a contrary bastard and wants to remain so. He huffs at Martin's next words and stubbornly shakes his head.]

Only the weak need someone to take care of them when they are injured. If you can't survive on your own, you don't deserve to.

[It doesn't sound like a rhetoric Maul himself believes, more like someone else's words are coming out of his mouth. Sidious did quite a number on his former apprentice.]