Having progressed from crawling to walking to being regally conveyed in a carriage to riding a tricycle to running, I began to have to address new and more relevant ways of personal transportation as I grew older. I was able to occasionally borrow, however briefly, a bicycle from an understanding friend. Late in August one year, I was riding on the sidewalk in front of Robertson’s house, when I lost my balance and fell to my right. I threw my right arm out to “break” my fall.