EE WAS MOVING AN ELECTRICAL WIRE WITH A HOOK OVER THE SALT PILE ONT HE SALT PAD. THE HOOK WAS IN HIS LEFT HAND. HE WAS ABOUT 5 FT FROM THE EDGE OF THE SALT WHEN IT GAVE WAY UNDER HIS R FOOT. H E SLIPPED ON HIS L SIDE, FELT A RIP IN HIS L SHOULDER AND A BURNING SENSATION.