COROLLA SLID OFF ROAD IN THE RAIN AND TIPPED INTO A DITCH WHERE IT HIT SEVERAL TREES. ONLY THE PASSENGER SIDE DOOR FRAME AIR BAG DEPLOYED. NONE OF THE OTHERS DEPLOYED. CAR WAS TOTALED AND DRIVER (SOLE OCCUPANT) SUFFERED A SEVERELY SEPARATED SHOULDER (REQUIRING SURGERY), CONCUSSION, TBI, TWO SPINAL FRACTURES, FACIAL LACERATIONS, AND SEVERE BRUISING INCLUDING BRUISED LUNGS.