My dad is an accountant who took some punch card FORTRAN programming classes in the early 70's as well. After 3 semesters he told his professor he wouldn't be returning to the computing department - his professor was shocked, for he was a star pupil! - for much the same reason. He and my mother still tell stories of Saturdays and Sundays spent organizing his punch cards and applying patches (literal in those days!) in the campus computer labs so he could have a more rapid debug cycle than was available during the week.