Last weekend, I struggled up out of my running funk and put in some miles just for the fun of it. I was feeling like the little slug to the right, whose portrait I took while trying a post-run stretch on a neighborhood stone wall after a slogging jog. Even now I think I still may have a slight cold, and also, my hip still aches, and my knee's a little wonky, and, and, and--blah, blah, blah. So, I said to myself Saturday morning, just run. And I did! That day, I ran around Lake Merritt before meeting the LMJS Beginning Running class , where I'm acting as the volunteer encourager this spring. What fun it was, first to run the lake and then to meet with the fabulous Karen, teacher of all good running habits, and the group of just-starting-out and wanting-to-get-back-to-it runners. They showed up on this breezy day, all of them dressed in activewear and running shoes and committed to joining the dance of the old left-right. It was all a feel-good, smashing success. Then Sunday, a...