At the end of the movie Porche orders the robot in the room with her to unplug her, which would kill her. But, this would go agisnt the first rule, mentioned earlier in the movie, A robot must never harm a human being. Even though the second rule states that a robot must follow all orders, the other part of the rules is that the order cannot go aginst the first one. Issac Asmov must be pretty mad!