DATE OF OCCURRENCE: 10/30/2015 AFTER SEVERAL MINUTES UNATTENDED, THE PARKING BRAKE SPONTANEOUSLY FAILED. THE VEHICLE ROLLED DOWN THE DRIVEWAY, COMING TO REST AFTER HITTING A TREE IN THE NEIGHBOR'S YARD. THE LOCAL POLICE WERE NOTIFIED; NO REPORT FILED DUE TO THE ONLY PRIVATE PROPERTY INVOLVED. INJURIES TO THE OWNER WHEN TRYING TO CATCH THE VEHICLE INCLUDE, BUT NOT LIMITED TO: SEVERE FACIAL TRAUMA AND LOSS OF CONSCIOUSNESS, DISLOCATED LEFT SHOULDER REQUIRING SURGERY, BROKEN 4TH AND 5TH RIBS, BROKEN BONE IN LEFT HAND.