EE WAS INSTALLING GUARDRAIL. THE RAILING WAS NOT ATTACHED YET. RAILING STARTED TO FALL. EE GRABBED END OF RAILING. RAILING VIOLENTLY SHOOK EE'S ARM WHEN THE OTHER END HIT THE GROUND. END OF RA ILING FELL ABOUT 6'. EE SUFFERED SPRAIN TO LEFT BICEP AND STRAIN TO LEFT SHOULDER.