ON A HILL IN A RESIDENTIAL COMMUNITY, CAR IN DRIVE WITH FOOT ON THE BRAKE , LET PASSENGER OUT STARTED TO PARK THEN CAR STARTED GOING BACKWARD DOWN HILL AND THERE WERE NO BRAKES TO STOP ,THEREFORE HAD TO HIT SOMETHING TO STOP CAR FROM GOING DOWN HILL AND GAINING SPEED WHERE I COULD OF BEEN KILLED. HIT A LARGE PLANTER IN FRONT OF A HOUSE.