I thought the lights on the Barge were simply magic.

Perhaps the robots in your world will one day grow weary of being servants. While normally I would not think a machine could grow weary of anything, I also wouldn't think a machine could be a friend, so if it can do one, it can certainly do the other. Besides, though T-X took a strange interest in my eyes and seemed overly certain that I needed a medical exam, is she not a warden?