Well, a lot of it is, he probably does know that something might not work most of the time, but when he's tired, hungry, thirsty, cold and cussing his producers he probably forgets some of the details.
He's training under realworld conditions. <img src="/images/graemlins/smile.gif" alt="" />
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-IronRaven
When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.