Someone who is so brave that they will never back down from a challenge. They will also do whatever it takes to do something that the believe should be done.
If james pickles somehow cannot remove his
shoes he will simply bite his own legs off, and happily state "There, done! That'll teach you to mess with a james pickles!"
If james pickles cannot open his house as he has lost his
keys, he will simply
set the house on
fire, and state: "If I can't use it, then I don't need it!"