WHILE UNLOADING WILDEN PUMP FROM BOX OF TOYOTA, EE LOST FOOTING AS HE PULLED PUMP TO REAR OF JEEP. HE SLIPPED OFF THE TAILGATE AND GRABBED THE SIDE RAIL WITH HIS RIGHT HAND. WHEN HIS FEET TOUC HED THE FLOOR, THE PUMP LONADED ON HIS LEFT THIGH AND HIS SHOULDER POPPED AT THE SAME TIME.