When I was a boy, my father nicknamed me "Corky" and most of my extended family and friends called me that.
When I became a teenager, I decided the name was childish and let it be known that henceforward I was to be called by my given name.
So from then on I was known as "Charlie."
(Never "Chuck." That was the name of that obnoxious kid from down the street. "Charlie," on the other hand, was a name I shared with a grandfather and a great-grandfather.)
But after my divorce, I saw the need to review my life and to re-affirm some of the things I had been missing over the years.
Thus, Corky, again.
I also found some self-deprecating humor in using it as a screen name while commenting on other people's blogs. I imagine readers coming across one of those comments and saying to themselves, "Oh no, not him again!"