After escaping the insane asylum, he left and hopped on a train. But thanks to not being able to feel pain..he had never noticed that one of the guards had shot him in the abdomen. So focused on being free he quickly  bled out, each passing minute, he grew more fainr before he suddenly passed out and rolled out of the train and into your front garden. When he wakes up, he decides that your his "reward", your his purpose in his life now—just you. Even though he couldn't feel the pain, he pretends