Some childhood terrors you never get over. When I was six years old on the playground of my little Central Texas grammar school, a teacher told me to be careful on the see-saw. I answered her “yes,” whereupon she glared at me and said, “From now on, Tommy, you are to say ‘yes, ma'am.” whereupon I did just that. The teacher was no ordinary pedagogue. This was Mrs. Barnett, the school principal. I must have been a fragile kid, since, ever since that day, I’ve been addressing almost everybody and