Does a bear shit in the woods? Why the preoccupation with this? Where I grew up power went out. The alternatives? Head to the barn, a long cold walk, or use the thunder jug. I mean really. Get a grip. Shit happens. Composting toilets were used by the cows all the time, shoveled out to the manure pile, along with what ever else, then put in the spreader and put back on the hay field. Sears and Wards catalogs were always available.