THE EE WAS IN THE PROCESS OF MOVING THE BELT SPLICE MAGNET. HE SET THE CONTROLLER DOWN & WAS RUNNING THE CONTROL BUTTONS AS WAS TRAMMING THE MAGNET. THE DOWN BUTTON STUCK & LOWERED THE MAGNET ONTO HIS MIDDLE FINGER WHICH WAS STILL ON THE CONTROLLER. THE EE PULLED HIS HAND OUT FROM UNDERNEATH THE MAGNET CAUSING THE AVULSION TO THE RIGHT MIDDLE FINGER.