The Defiant One - S3.E22

Ann befriends an African-American boy after saving him from a shoplifting charge. When he tells her he lives on Park Avenue, she does not believe him, so he invents a story of 13 brothers and sisters, fat rats, life in a dirty tenament, and a father who beats him. Appalled, Ann goes so far as to decide to adopt him! The boy then calls his father, who happened to be wealthy like he said earlier.