The Earth Project

What happens when an advanced civilization from another world choose an ordinary, "expendable" human being and give him total control of a powerful and potentially deadly craft, purely for their entertainment and curiosity? Will their prejudices be confirmed? Will he use it for pleasure, greed, and gain? Or will he surprise them with good deeds and intentions? They watch and they wait. However, their project backfires, and in a twist of fate, he becomes their salvation.