One fine day in 1938 a small boy was placed in his push chair, a wood and canvas affair with six inch wire spoked and  hard rubber tyred wheels. He was pushed down a long road with iron railings along its length and it was probably the incidence of the railings, perhaps with light flashing through them or maybe their repetitive shadows which caused the incident to be remembered. He carried with him his favourite toy: a brightly painted wooden "monkey on a stick" By pulling on a cord, or perhaps a lever, he was able to make the monkey climb the stick. David, for that was his name,liked opereating that toy for he was in control and could decide when the monkey would climb and when descend. At the time all other decisions were made for him and thus were outside of his control.