They're teaching the metal bastards to have sex:
"
Sexed Robots 2005
The sexed robots are autonomous wheeled platforms fitted with nylon genital organs, respectively male and female. They are programmed to explore their environment, occasionally entering a "in heat" mode, where they will try and locate a partner in the same state. If a partner is located, the robots will attempt to mate."
Follow the link, they even have a movie of robot sex.
First, they came to vaccumn our floors, and I didn't care because I wasn't a floor. Then they came to be army pack mules, and I didn't care because I wasn't in the army. Then they came for our women...