Think about it! His great-grandfather went insane, perhaps that trait was passed down to his descendants. Let's be realistic here. Traveling in the Arctic and having to take responsibility for a crew can be an overwhelming experience. Who's to say that stress didn't drive the man insane? I mean why else would Sam live in a fantasy world where cars turn into giant men. Furthermore he thinks the government sees him as an important! Classic case of paranoid schizophrenia. I've made my point. Note: this was entirely satirical. I just keep on seeing more and more ludicrous discussions on the side bar every day. Some things can be taken too far.