I fell down yesterday. Nothing dramatic, but not graceful either -- a slip on the ice, a partial recovery, then capsize softened by knee, hip, wrist, elbow, and shoulder, resulting in me flat on my back like a helpless beetle. I cursed and rolled back to my feet, got up and laughed, wondering but not checking if anyone had witnessed my little display. I couldn't remember the last time I fell down. It's the fundamental faux pas of the entire animal kingdom, bred deep into the brain stem. Don't fall down. The others will eat you.