Graham tells the story: "It was a memorable day out. Unfortunately my shoe fell apart on the Mamores after 17 Munros, and I had to put a sock around it to hold it together, at which point I lost the group. But thanks to some great support, and the kind donation of a shoe for the last three hills, I finished about 20mins after the others, in 23hours 58mins."
"Who's next?" he asks.