See my comment 4 levels up from this one. "I know what this person's key was when I sold him the car. Here, have a copy." VS. "I have full control of this pe

See my comment 4 levels up from this one. "I know what this person's key was when I sold him the car. Here, have a copy." VS. "I have full control of this person's car, even though I'm not the owner. Here, let me remotely disable it for you."