AFTER Paula Radcliffe paused for a comfort stop during last year's London Marathon, spectators probably thought they had seen everything. But Trusham farmer Colin Edwards, running his second marathon this weekend since losing his leg, explained that he will have to stop during the race for a quite different reason. As he gets hotter, the prosthetic limb becomes slippery and needs to be dried. Mr Edwards, 50, said: 'I have to stop and take all the gubbins off, which can lead to interesting situations. People are surprised when you suddenly take off your leg.' Last year as he was doing this a man asked if he was raising money for charity and promptly gave him £20. Mr Edwards' leg was badly damaged in a motorcycle smash 30 years ago. A surgeon managed to save the limb, but he was advised to have it amputated 11 years ago after suffering years of discomfort. He hopes to shave 18 minutes off last year's time of 5hrs 18mins, as well as raise £1,200 for the charity Steps, which campaigns for children and young adults with lower limb conditions. He was inspired to continue his love of running after being a patient at Exeter Mobility Centre. 'It often strikes me that new amputees give in and think that is the end of life. I hope I can inspire other amputees to be fitter and do more,' he said. Last year, Mr Edwards joined a party associated with the prosthetic limb trade, to make an attempt on Everest. He was the only one of the group actually wearing one. 'We managed to get as far as Tabuchi monastery, but we were driven back by appalling weather conditions and our head sherpa refused to go any further. It was a great shame.' Nothing daunted, he is planning to climb Cotopaxi in Ecuador next year, one of the world's highest active volcanoes.