 Robinson was rejected every time, but circumnavigated this roadblock altogether by becoming a janitor on Saturday nights, thereby being able to listen in on the lessons being taught in the evening class at the time.Becoming exposed to like-minded individuals in the subject, Robinson started the Aero Study Group, one that successfully manage to build its own airplane, tested out by the same night teacher whose class Robinson cleaned, Bill Henderson.Impressed by the plane, Henderson got Robinson a slot at the school, and, under the instructions of Mr. Snyder, Robinson became a licensed pilot.