Robot has a split personality: he is kind and loving but has a bear trap on one hand and a laser cannon on the other hand. He just wants to cuddle, really. Do you remember the Three Laws of Robotics?
A robot may not injure a human being or, through inaction, allow a human being to come to harm.
A robot must obey the orders given to it by human beings, except where such orders would conflict with the First Law.
A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.