I WAS SITTING IN MY DRIVEWAY WITH THE VEHICLE IN PARK. I OPENED MY DOOR AND BEGAN TO GET OUT OF MY VEHICLE AND IT BEGAN TO ROLL FORWARD. MY DAUGHTER'S KIDS THAT SHE NANNY'S WAS GETTING OUT OF HER VEHICLE AND HAD HER DOOR OPEN. BEFORE I COULD REACH THE BRAKE PEDAL MY TRUCK RAN INTO HER OPEN DOOR CREASING IT AND ALMOST CRUSHING THE BOY THAT WAS EXITING THE VEHICLE.