4 PIECES 175 LB EACH DRILL PIPE WAS DELIVERED TO THE SITE ON A GOOSENECK TRAILER BACKWARDS. EE HAD PICHED UP 3 PIECES BY THE BOX END, PULLED THEM FORWARD HOOKED THEM UP & LOWERED DOWN THE HOLE . ON THE 4TH PIECE THE END FELL OFF THE TRAILER BOUNCING CAUSING THE END HE WAS HOLDING TO FALL DOWN HIS RIGHT SIDE STRIKING THE RIGHT SIDE OF HIS KNEE. LEFT SIDE OF KNEE HIT SOME 5"" PIPE ...