EMPLOYEE WAS STANDING ON THE BOTTOM RUNG OF A LADDER TO POSITION GRINDER WHILE GRINDING ON THE SHOVEL STICKS. WHILE GRINDING ON THE STICKS, THE LADDER TIPPED CAUSING THE EMPLOYEE TO START TO F ALL. THE GRINDER CAME OFF THE TOP OF THE STICKS,AND THE SPINNING WHEEL HIT HIM IN THE RIGHT KNEE. THE EMPLOYEE WAS TAKEN TO THE NNRH EMERGENCY ROOM FOR EVALUATION AND TREATMENT. HE RECEIVED S