Having read on hear about different ways to add calcium, including building a machine, I wanted to put forth an idea I saw. Looking for ways to recycle as much as I can at home I looked into dog hair. I knew it was used for oil cleanup and some crafts. One recommendation however was to put it in the compost heap. Completely organic, quickly biodegradeable and rich in calcium. Anyone ever heard of this? Or done it? Like to hear some thoughts, good, bad or indifferent.