Isaac Asimov's three laws of robotics

(1) A robot may not harm a human being or through inaction allow a human being to come to harm.

(2) A robot must obey the orders given to 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.

So could a Pleo eat his master?