Asimov's three Laws of Robotics are frequently quoted thusly:

1. A robot may not injure a human being, or, through inaction, allow a human being to come to harm.
2. A robot must obey the orders given it by human beings except where such orders would conflict with the First Law.
3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.

I think, however, you will find a Fourth Law (and no, I don't mean the 'Zeroth' one), which categorically states that a robot, when going about its normal every day existence, must not be cute, or do cute things.

Honda's Asimo breaks the Fourth Law of Robotics by running in a cute manner.

(Thanks crw.)

PS. Green line still here.