The guy next to me on the trans-bay commuter bus is clearly working Very, Very Hard. He is hunched over his laptop like a bomb disposal technician, typing furiously and occasionally cracking his knuckles in a let’s-get-down-to-brass-tacks fashion. He just shook his head vigorously from side to side and made a “hurrnnnnh” noise. I expect he will soon break into a chorus of “I’ve Been Workin’ on the Railroad.”