wasn't there for her, he cannot help but protect Charlie from whatever is hurting him. After Charlie found a classical music composition for the piano (an Etude in G minor) that their mother wrote under her maiden name and his father admits that music was one of Margaret's first loves, Don and his brother remember the piano lessons that she made them take. While Don jokes about the dreadful teacher they had, he and Charlie realize why it was so important to their mother. At the end of "Running Man", Don comes home and finds the sheet music his mother wrote on the table. He sits down and starts playing, hesitantly at first, as Charlie and Alan listen from the garage. When Megan Reeves was kidnapped, Don pushed his ethics to the limit to get her back. While he did not personally beat a suspect, he had Special Agent Ian Edgerton interrogate the teenager for information on where Megan was being held. It is never shown or said what Edgerton did during the interrogation, but it is heavily implied that he may have used physical force, up to and including applying pressure to the gunshot wound through the teen's wrist; Don expressed concern to his father over being willing to go that far, even if he wasn't doing it himself. After this discussion, he convinced his father that it is good to have someone to come home to, and that is why he comes around the Craftsman house so often rather than staying at his apartment. In "Provenance," Don began to wonder why their family was not more religious and wanted to get in touch with his relatives, especially his grandmother's cousin who escaped World War II. A victim of the Holocaust found solace when Don had given a stolen painting which held much sentimentality back to her. Prior to this she had said that he knew pain in losing his mother. All of this had surfaced deep emotions in Don. Also in this episode, Don has jokingly stated he was a "lost cause," when his father expressed a failure in parenting him. On the other hand, in the previous season's "Calculated Risk," Don showed a connection to a boy who had lost his mother, giving hope to Alan that he had done something right. Don was once nearly married to a fellow agent named Kim Hall, but that relationship