this is far enough , he instructed , stopping just before the mirror wall where our slightly distorted silhouettes stared back at us . they had rarely spent any time alone together . a nineteen-year-old rust called as he shot ahead of his younger brother . she had n't been there for more than forty minutes when a guard came and stood in the open doorway . `` and i 'd appreciate it if you call me sir , '' he added . your life is better because you have grown while you have been here . 