Huh, looks like Isaac Asimov's 3 laws of robotics have been expanded tenfold by the thoughtful Something Awful guys:
# A robot must tip its hat in the presence of a lady human being, except where such a display would be construed as a come-on by a jealous male human being, who then might pose a difficulty to the Third Law.# A robot may not act in such a fashion as would make dogs obsolete, because dogs are less expensive than robots, and robots should be reserved for science things.
# A robot, when given contradictory orders by two human beings, and assuming those orders do not violate the First Law, must decide which order to follow based on which human being has a deeper voice.
# A robot, specifically a big, wide robot, may not pretend to be a refrigerator and then make a scary noise when a human being opens it.
Asimov's 30 Laws of Robotics [ somethingawful.com, thanks Coop ]