MONTY PYTHON star John Cleese has been ordered to abandon his infamous 'silly walk' over fears it will jeopardise his recent hip replacement. The British funnyman, who used the skit on a number of Python shows, blames his outrageous pedestrian routine for forcing him into the operating theatre in the first place. The 66-year-old says, "I can't do it because I've had a hip replacement - probably because I did so much of it. "I don't know how I even managed in the first place."