THE TAURUS WAS PARKED AT DZ MIDDLE SCHOOL ON A SLIGHTLY SLOPED PART OF THE DRIVEWAY WITH THE TRANSMISSION SELECTOR LEVER INDICATING PARK AND THE ENGINE TURNED OFF. THE LINKAGE CONNECTION ON THE TRANSMISSION HAD FAILED AND ALLOWED THE SELECTOR LEVER TO INDICATE THAT THE TRANSMISSION WAS IN PARK WHEN THE TRANSMISSION WAS ACTUALLY IN NEUTRAL. THE DRIVER THEN WENT INTO THE SCHOOL BUILDING AND UPON RETURNING A FEW MINUTES LATER FOUND THAT THE CAR HAD ROLLED APPROX 150 YARDS DOWN THE DRIVEWAY, ACROSS A STREET, THROUGH A BUS TURN-AROUND, DOWN A 15 FOOT EMBANKMENT, AND INTO A DITCH. FORTUNATELY THERE WERE NO OCCUPANTS IN THE CAR AND IT WAS AT NIGHT SO THERE WERE NO KIDS ALONG THE DRIVEWAY OR ON THE STREET.