The first time I met Simon Murray was to interview him for The Financial Need about the mega-billion pound investment fund he had recently set up with high-powered friends in high places. We didn’t get around to talking much about the fund. He was much keener to talk about how exhausted he was after sleeping out on Dartmoor in a bin bag. He had also been dragging tyres from a rope around his stomach for miles as part of his training for pulling a 23 stone sledge uphill for eight hours a day.