EE WAS USING A UTILITY KNIFE TO CUT THE RUBBER/WIRE STRAPS ON CONVEYOR BELTING AT THE OLD GRAVEL PLANT. HE WAS TRYING TO CUT IT IN ONE PASS, WHICH CAUSED THE KNIFE TO COME BACK TOO FAR AND TOO FAST, HITTING HIS RIGHT KNEE. THE KNIFE SLICED OPEN AND AREA APPROX. 3"" LONG ON HIS RIGHT KNEE CAP.