People ask me:
Where did this  "Old Man" thing come from anyway?

Well, many years ago...
I got into Unreal Tournament online.  I played, well, too much!

In the course of my play, I kept running into VERY young hotshots that were a bit...
overproud of their skills.  They couldn't believe that an OLD guy like me
(let's say I'm over 40 and leave it at that) could match them.
I noticed that whenever I was killed, the game would say in the center:

You were killed by someplayername !

So, I changed my player name to An_Old_Man.  When the hotshot got killed by me,
their screen would say:

You were killed by An_Old_Man !

The name stuck, and I eventually joined a clan. (Team)

Times have changed, bots (cheating) ruined the game, the team disbanded...
but OldMan lives on!