Old Man Grimely was pontificating in the Come-On-Give-Us-One-More-Chance Diner on how old he was. Course, if you take everything he says with a grain of salt, you might suffer a stroke from high blood pressure. He said, “When I was a kid in school, we didn’t have book covers for our textbooks. We carried our writing stones in protective animal skins. I attended a one-cave classroom. I learned my u…