EMPLOYEE WAS TRANSPORTING STONE FROM QUARRY TO CRUSHER, HIT A BUMP IN QUARRY ROAD AND SNEEZED AT THE SAME TIME. EMPLOYEE'S LEFT HAND WAS STEERING TRUCK AND RIGHT HAND WAS SHIFTING TRANSMISSION . FORCE OF SNEEZE WAS IN OPPOSITION TO FORCE BEING APPLIED TO STEERING WHEEL TO MAINTAIN CONTROLOF TRUCK, CAUSING MUSCLE STRAIN TO RHOMBUS MUSCLE UNDER LEFT SCAPULA.