Sounds like you're talking about
Chris McCandless, a disaffected youth who tried to live the Thoreau's
Walden lifestyle, but wound up starving to death in an Alaskan bus when he was cut off from civilization by a swollen river. He died from a combination of malnutrition and poisonous wild potato seeds. For some reason, McCandless refused to take adequate preecautions and supplies for his hiking journey, even though at least one local in the area offered to buy them for him. McCandless was a troubled lad who deeply desired to live life a certain way, to the point where his ability to process reality was affected. He surely thought he could survive the bush with the meager supplies he had brought with him. The funny thing is, if he had bothered to invest in a topological map of the area he was planning to hike in, he would have noticed a hand-operated river tramway, not more than a mile away from the bus he was starving in. He could have crossed the river and gotten back to civillization. But again, his lack of ability to gauge his own skill and resource levels led to his doom. It's a sobering lesson on how important it is to put reality ahead of high-falutin' dreams of what life "innawoods" is supposed to be like.
Bob would do well to pay attention to this lesson, as he seems to have the same glitch in his brain when it comes to processing reality. The only advantage Bob has over McCandless is that his bulk
might keep his body from starving long enough for help to come, should he ever get stuck in the wilderness somewhere...