AFTER SECURING THE HOE WITH CHAINS HE PROCEEDED TO WALK ALONG SIDE THE HOE TO DISMOUNT OFF THE REAR OF THE ROLL BACK. HIS FOOT SLIPPED AND HE FELL APPROX 4 FT TO THE GROUND. STATED WHILE RETRI EVING THE HOE, THE SHOP YARD WAS VERY MUDDY AND HIS SHOES WERE COVERED WITH MUD.