“You don’t point very well, do you, Grandpa?” said one of my father’s grandsons, critically, when that child was about aged five. It’s true, though. Grandpa didn’t point very well, because 15+ years ago my Dad developed what’s called an essential tremor, which is, as I understand it, basically a short in the electrical wiring of the brain that causes (usually) the sufferer’s dominant hand to shake uncontrollably, but which can also affect the other hand, the head, and the gait. Dad, never one to do things by half measures,…
