"An assassin in a post-apocalyptic world," Carl said, after a moment. "Sounds like you're not one who takes being told no lightly." That part was proven already, when Carl had tried to tell him no about the gun.
"I understand that, though. I never took to being told no, either. ...which led to one of the times I got shot."
He shrugged slightly at this, as though it were no big deal. Because, to Carl, it wasn't. Not anymore. He had survived.