During a helping of succulent to sucktastic sushi @ MAGFest, it dawned over us that we were unaware of the origins of those sitting directly next to and across from ourselves.
Oddly enough, I had the same discussion over Chinese food when I had a small party with Roger, MarsDragon, Burrito, and Kei-chan a couple of years ago.
For those who don't know, Rosencrantz comes from a minor character in Hamlet, and he (along with Guildenstern) are the main characters of a play (and also movie, in which Rosen is played by Gary Oldman) appropriately titled Rosencrantz & Guildenstern Are Dead. When Guild pointed me towards #finalfight a long time ago, he suggested that we take those names for some reason.
My other main handle, Aett, is another (and dumber) story. The short version is, Aett is the name of a fictional character of mine that I created when I was eleven or so. The way I came across those four particular letters is a surprisingly long story.