Here's an interesting one, IRI5HJ4CK means "Irish Jack", the first website i registered with wanted a secure username (so nobody could hack into my profile) and it said it wanted letters an numbers, and i decided to add caps on it to make it even harder for people to try and hack into my profile (if someone tried) so i thought to myself "what should i do?" and i came up with the idea of "Irish Jack" but then relised it had to have no spaces, so i decided to make it "IRI5HJ4CK" the 5 being s and the 4 being the a, to suit the rules of the site i was registering on. And ever since then, i have used that name, not so much for security now but just for general use, as i like it, lots of people that don't know me on MP (which dosen't happen often as i'm always on MP, its usually the new ones) call me "Irish", or "Towing Service" since i added the Towing Service bit to my name as i've always done towing, think back to the days of Marseille and you will remember.
Jack.