Well in that case, I should definitely use my a$$, buy that would be a trick far beyond my poor abilities to execute. Stop and think about it, except for that particularly well cushioned part of the anatomy, where on the body has more surface area than the hands as well as the ability to slow down the fall as through the arms and elbows. The feet, sure, but they aren't available. The hip, but it is especially delicate, particularly as we age. Everything else is pretty small.