EMPLOYEE WAS WATCHING HOW TO UNSTOP A GATE. WHEN THE MATERIAL STARTED TO FLOW, HE PANICKED AND MOVED TOWARDS THE PERSON GIVING THE INSTRUCTIONS.WHILE SHUTTING OFFTHE VALVE ON WATER HOSE, THE P RESSURE BECAME TOO MUCH FOR INSTRUCTOR AND HE LOST CONTROL OF THE WATER HOSE, THE METAL PIPE ATTACHED TO THE END OF THE WATER HOSE WAS FORCED OUT STRIKING HIM ON SIDE OF HEAD CUT EYE.