It's about as serious as things can get right now. We're hunkered down when we'd prefer to go out, volunteer, and somehow try and save lives and reduce suffering, staying home unless we are essential. Because, we understand, it's the kindest thing we can do for others right now, not to mention for ourselves and our families. So I've been sewing masks for our local health center. And, naturally, I've also turned again to knitting from time to time. Recently when my neighbor Marc and I were chatting over the fence at a respectable 18-foot distance, he said he had a new idea for a hat, and it should say "roll." "Why roll?" he said recently on Instagram. "Because that's what my father would say: roll with the punches. So that's what we need to do now." If I were this professor's student, I'd get on with it. And knowing I had some leftover yarn tucked away in my stash, I got to work. Now to me, Marc i...