LEELA: Doctor, what is robophobia?
DOCTOR: It's an unreasoning dread of robots. You see, most living creatures use non-verbal signals. Body movement, eye contact, facial expression, that sort of thing.
LEELA: Body language.
DOCTOR: Exactly. While these robots are humanoid, presumably for aesthetic reasons, they give no signals. It's rather like being surrounded by walking, talking, dead men.
- Doctor Who 'The Robots of Death' 1977