Another idea that has been rumblin round the ol noodle. I watched a documentary about a spore (or fungus) that attacks ants, causing them to climb trees. Once they've reached a sufficient height, the spore grows a LONG horn out of the ant's head, killing the ant and spreading more spores.
I thought the robot equivalent could be caused by nano technology that infects the robot, rearranges it's internal parts, and takes control. Crazy Nano-virus.
