Back in 1987, I started playing a game called 'Photon'. It's kind of like 'Laser Tag', except that you go to a specific place to play it (ours was in Fountain Valley, CA). They have all the gear and the playing field set up for you. When you play, you use an alias, or code name. I decided I wanted to use the Greek god of light as my code name. Well, I did the research and found out the closest they came to that was Apollo, who was god of the sun. Not good enough. So, I made up the name. So 'Photeus' is a combination of 'photon' and the suffix 'eus', which sounds vaguely Greek-ish. I've stuck with it ever since. It's even my license plate.