Many years ago, let's not be too specific (say about 40 years), I was your typical 14 year boy who could not sit still for a minute and loved all sports. It was during a field hockey match one day that I hit the turf hard and had difficulty breathing. For 4 days I had severe chest pain (as only 14 year old boys can demonstrate). A family friend, Bill Driesens, was a manual physiotherapist and my dear mother took me there to see if I was going to live another day. After his assessment, he concluded that one of my ribs was "out".