I've always been told you can take a solid blunt object, such as a Baseball Bat, or Tire Iron, etc... and hit the retard on the back of the head. Upon knocking the retard unconscious you can simply drag them into a cage and keep them away from the motor as to not cause more problems.

I myself have not tried this, as I keep my retard under control and chained in place, but whatever works for you.

Try some research and see what others have done to solve their retarded problems.