Please excuse the humor: I just got back from the 6th annual Texas men's appreciation for Russian women Bar-B-Que and my plane was "only" 4 1/2 late leaving Dallas. (Something about a little thunder and lightning being a danger for the ramp crews.)
While I was there I saw what 3 Jacks, or, more precisely, what one of our posters has claimed to be Jack and two of his alter egos for posting here: Fred and Barry M. That's right, I saw Jack, Barry M and Fred all in the same place at the same time! I even checked their ID! I can state that Barry M is not Jack. I can also state that Fred is not Jack. I can also state that Jack is Jack: I'd always figured that Jack was short for John as in my Uncle Jack, but that is not the case. It's Jack as in Jack.
Richard