The father steadfastly refused to believe a business as complicated as his could ever be handled by a machine... a sad contrast to the stark reality - it is because of these machines that many jobbers were able to survive. The father hated the idea of ‘change’. After all, he had built a very successful business already… why change anything?
In reality, what did happen was the customers fully expected the free-ride to end someday and only one customer came to complain. His comment, "You can charge me all the interest you want, but I ain't gonna pay none of it." He kept trading with the jobbership nonetheless.