Failing a fitness challenge is awesome in so many ways. First of all, you don't have to motivate your lazy ass enough to get down to the damn gym. You don't feel tired after moving around pieces of metal for an hour, or running around a giant circle for 20 minutes. In fact, you don’t feel tired at all, because you’ve done absolutely nothing.
Yes, failing a fitness challenge is great, except for the effect on your body, self-esteem and dignity.