fortunately the hangar was well to the north so no one seemed in the slighted bit interested in the comings and goings of an eccentric rich european who wanted to fly around their desert and mountains taking photographs of sand dunes and rocks , just as long as the price was right , although the permit to fly , issued by a local shopkeeper who assured aaron that he was the duly appointed local agent for issuing such permits , looked as though it had been hand written on the back of a receipt for a goat .