Mine harkens waaaaaaaaaay back to the days of surfing the BBSes on my Commodore 64 with my...get this...300 baud modem. We always had hamsters when I was a kid, so that's the handle I chose (I was like 10 at the time). It was l33t to have combinations of capitals interspersed in the nick. It has stuck through the demise of the C=64, my college days on EFnet IRC, and now gaming.