10. John Fashanu
Eel Helmet
Series two saw John Fashanu place his head in a Perspex box of water, with eels dropping on him through a chute every 30 seconds.
Ant was suitably sympathetic, conceding that the footballer's trial was "probably one of the toughest, to be honest with you". After seeing the challenge through to its slimy end, an unimpressed Fash glowered: "That was hell. Whoever thought of that I'd like to meet in a dark alley."