EE WAS OPERATING BOBCAT, HEADING TO THE LOCKER ROOM AT FULL SPEED (5 MPH). HE HIT A DIP IN THE PAVEMENT NEXT TO THE BUILDING. THE IMPACT CAUSEDTHE BOBCAT TO JOSTLE AND BOUNCE FOR 10-20'. THIS MOTION CAUSED HIS CHEST TO STRIKE THE HARD PLASTIC ROLL BAR. HE SUFFERED A SWOLLEN & BRUISED CHEST AND HAD DIFFICULTY BREATHING.