Tough guy is an absurdly gruelling English event that lasts between 90 minutes and five hours, depending on your fitness and pain threshold. Held biannually to raise money for charity, it starts with a lengthy cross-country run before taking the 2000-4000 starters into the obstacle course from hell. Features of the charmingly named "Killing Fields" include electric fences, underground tunnels, fire pits, barbed wire and acres of mud.
Tongue in cheek training methods, including running with frozen peas down your shorts and climbing head first into a wheelie bin, closing the lid and waiting five minutes before wriggling out.