I don't understand. I know what a psychopath is, but I can't seem to fathom the meaning of Sociopath. What are the traits of a Sociopath? I remember watching a movie once, and the protagonist's friend brought in a case of equipment over to his house, and as he was laying the equipment on the floor he said, "My dad is a type-A sociopath." So is it somebody who hoards things?