THE EE WAS CLIMBING OFF OF THE TEREX TRUCK. AS HE WAS FINISHING HIS DECENT, ONE LEG LEFT ON THE TRUCK'S LADDER AND ONE LEG RIGHT WAS ONT HE GROUND. THE FOOT THAT WAS ON THE GROUND WAS PLACED O N A SMALL ROCK CAUSING THE EE TO HIS BODY, INJURING HIS KNEE. THIS INJURY WAS CLASSIFIED AS A FIRST AID INJURY. THE EE IS NOW RECEIVING PHYSICAL THERAPY.