There used to be a field with cross country ski trails behind the fire station in the next town over from me. I skied there often, but once on an icy day I fell and dislocated my shoulder. It was excruciating, but it was very convenient that I was less than half a mile from the biggest team of well-equipped first responders in the region. And it gave them an excuse to fire up their snowmobile to tow me in a sled behind it to the road.