Mr. Bowie made a point of visiting Mr. Pop’s parents in Detroit, where they were living in a trailer. ‘He came to my parents’ trailer, and the neighbors were so frightened of the car and the bodyguard they called the police,’ Mr. Pop said. 'My father’s a very wonderful man, and he said, “Thank you for what you’re doing for my son.” I thought: Shut up, Dad. You’re making me look uncool.’