The sun is hours away from rising in the South Australian outback, and retiree Kerry Storer is wrapped up in blankets to stave off the bitingly cold winter air. It's 3.30 in the morning. His alarm cuts through the night, signalling the start of what will be a hectic 14-hour shift. For many, the thought of crawling out of bed so early would seem an unwelcome challenge. And if you'd spent your working life waking up before dawn, continuing such early starts wouldn't top most retirees' to-do lists.