V
Vale
Guest
One word: HAL 9000. Maybe that's two words. Or three.
...Someone call?

And keep the rules simple. Eliminating "or through inaction, allow a human to come to harm" would have prevented the catastrophe seen in the "I Robot" movie.
Doing that leads to the entire plot of a duplicitous and potentially murderous robot in Asimov's short story "Little Lost Robot" though.