On Friday morning as I drove under the 80 overpass on that street by the cop-shop heading to the 280 freeway, I heard some parrots, the wild parrots of San Francisco . . . and yet I forgot to tell my students in the class in which we'll be reading Mark Bittner's book on those exact birds. I was also slightly late to and somewhat off-balance in both classes. Friday was one of those days . . . .