I ran the Warrior Dash a few weeks ago. It was awesome. It is basically a 5k through mud with obstacles. A 5k doesn't seem like much, but it was exhausting. Running through mud was insane. People were losing their shoes as they ran and there was so much mud, they couldn't even find them. When you got mud in your eye, there was nothing you could do, because your hands and clothes were all covered with mud. The obstacles were too challenging, but I was already so tired, it was almost a good thing. They were a lot of fun obstacles though. Running through fire, swinging tires, rope climbs, crawling on your belly under barbed wire. Seriously, what is that about. You'd think they could at least use normal wire, but no...gotta go hardcore and use barbed wire. It was such an awesome experience though. Will do one again soon.
It was not even worth trying to salvage clothes or shoes. So they collected people's shoes (if they wanted) and donated them to Africa.