As he did when he was a child, Rooke cultivates a personal environment in which he can pursue his own interests, while technically remaining a part of a greater community. This shows that Rooke hasn't yet come upon a sense of community with actual people that outweighs his desire to be alone and undisturbed. It's worth noting too that Rooke's communication skills are improving. Though the carpenter is offended, Rooke conveys what he wants and gets it.