entrants must sign a "death warrant", which acknowledges the many risks and dangers, and which the organizers claim absolves them of any legal liability in the case of injury. First aid is provided by doctors, paramedics, nurses, and 60 first aiders from St. John Ambulance. After a year's hiatus following the 2017 race, with three events held during this period on the traditional Tough Guy course under the "Mr Mouse Events" name (albeit with altered routes and distances), the winter "Mudathon" in February 2018 was filmed and later broadcast on BBC Two as part of the corporation's Sports Relief scheduling; it followed four celebrities on their journey to train and attempt to complete the "Tough Guy" course. Tough Guy HQ later announced it would be returning to its roots and has since restarted its Nettle Warrior and Tough Guy Original races under the original format and names, which it continues to hold annually. Deaths and injuries In 2000, one competitor, Michael Green, from Leicestershire, collapsed midway through the race and later died in hospital, reportedly of a massive heart attack brought on by extreme hypothermia. Green was 44 years old. According to Wilson, this was the first fatality in 15 years. Other injuries suffered in the event are common. Local newspaper reports suggested that among the competitors in the 2009 event, one suffered a broken neck, another broken pelvis, yet another broken pubic bone while there were a dozen broken or dislocated bones and 600 runners - including the winner - suffered hypothermia. Nettle Warrior Nettle Warrior is the summer version of Tough Guy, first staged in 1998, and is normally run at the end of July. Though the course is essentially the same as Tough Guy, there are notable differences. Nettle Warrior involves two laps of an area the organizers have called "The Killing Fields", a log carry and some rafting as part of "The Lake" obstacle. Billy Wilson Before he began staging the Tough Guy, Billy Wilson was already known as a high-profile organizer of road running races and a sometimes eccentric participant, most notably for taking part in the first London Marathon in 1981 dressed as a pantomime horse to raise funds for his Tettenhall Horse Sanctuary, which is the principal beneficiary of the Tough Guy event. A former Grenadier Guards trained soldier in the British Army, Wilson's earliest sporting exploits were as a cyclist, a career