STOPPED CAR IN PARKING LOT, TURNED OFF ENGINE. RETURNED TO CAR, STARTED ENGINE AND PUT IN REVERSE. CAR TOOK OFF WHEN THROTTLE BODY STUCK WIDE OPEN. CAR MADE WIDE CIRCLE'S, I TRIED TO STOP BY PUSHING ON BRAKE PEDAL, AFTER HITTING SEVERAL CEMENT PARKING CURBS AND THEN STRIKING ANOTHER CAR I WAS ABLE TO GET CAR STOPPED AND TURNED OFF ENGINE. *TR