EE WAS USING AN ARC TO REMOVE STEEL FRO AN OLD WELDING SKID TO REBUILD SKID FOR ANOTHER USE. HE HAD REMOVED A PIECE OF 8"" DIAMETER PIPE 19"" LONG. AS HE STOOD IT UP ON END AND CONTINUED TO CUT ANOTHER PIECE, THE WELDER LEAD WAS BEHIND THE PIPE AND KNOCKED THE PIECE OF PIPE OVER. IT FELL &STRUCK VICTIM'S LEFT FOOT BEHIND THE STEEL TOE OF HIS BOOT CAUSING A FRACTURE TO HIS BIG TOE.