"I often wonder what some of the people who often reply to me do for a living.
Then I think, Dear God I hope it's nothing important."
(Twitter user yesterday, who uses the handle "Sir Septimus Pyecroft"
For the avoidance of doubt, I am not suggesting that this is my reaction to most of those who put posts on this blog, at least not the ones who identify themselves with either their real name or a consistent pen-name.
One or two of the anonymous posters, however ...)