On Sunday, July 20, 2014 9:24:13 PM UTC-4, wrote:
What happens if the auger hits a root too big, and jams?



Won't it spin you and your friend in circles until you fly off?



That's why you have a third person present to pull the power plug before they fly off into space. Maybe a new way to launch noon rockets????

It's not a hypothetical, it's a recent actual accident. There wasn't time to blink let alone kill power.