From the Channel 4 production of The Unpleasant World of Penn & Teller. After Alexei Sayle performs stand-up, Penn shows him how dying on stage is really done. Penn gets locked in a steel cage, in 'the standard stand-up comedian' posture. He cannot move, and has only his sense of humour to protect him. In this clip he demonstrates just how vital a good sense of humour is to a comedian.