THE HAND BRAKE, IF ENGAGED IN THE FIRST OR SECOND NOTCH, FAILS ABOUT THREE HOURS AFTER HAVING SUCESSFULLY IMMOBILIZED THE CAR. ON A STANDARD DRIVEWAY, THE CAR ROLLS BACK THE LENGTH OF THE DRIVE WAY AND GATHERS ENOUGH MOMENTUM TO GO ABOUT 6-9 FEET BEYOND THE CURB. THIS COULD HAVE FATAL CONSEQUENCES. *AK