'All I wanted to do was go to sleep. And I was certain that if I did drift off, it would be for the last time.' In 1998, Paul Pritchard was struck on the head by a falling rock as he climbed a sea stack in Tasmania called the Totem Pole. Close to death, waiting for hours for rescue, Pritchard kept himself going with a promise that given the chance, he would 'at least attempt to live'. Left hemiplegic by his injury, Pritchard has spent...