THE OPERATOR WAS ATTEMPTING TO ENTER THE VEHICLE WHILE IT WAS RUNNING AND IN PARK. AS THE OPERATOR ATTEMPTED TO ENTER THE VEHICLE HE PLACED HIS LEFT HAND ON THE TOP OF THE DRIVER'S SIDE DOOR AND HIS RIGHT HAND ON THE STEERING WHEEL. THE VEHICLE TRANSMISSION ENGAGED AND THE VEHICLE STARTED TO MOVE IN REVERSE. A WITNESS STATED THAT THE VEHICLE "TOOK OFF LIKE A ROCKET". THE WITNESS ESTIMATED THAT THE VEHICLE TRAVELED APPROXIMATELY 15 FEET IN A SECOND. THE OPERATOR WAS STRUCK BY THE VEHICLE AND SUFFERED SERIOUS INJURIES. THE VEHICLE TRAVERSED SEVERAL LANES OF TRAVEL, STRUCK A CURB, WHICH CHANGED ITS DIRECTION OF TRAVEL. THE VEHICLE THEN TRAVERSED SEVERAL MORE LANES OF TRAVEL AND STRUCK ANOTHER VEHICLE WITH SUFFICIENT FORCE TO CAUSE IT TO "JUMP" THE CURB...UPDATED 05/02/16 *BF; UPDATED 4/30/18*JB