Hmm, well my real last name is Romeo, as in "Hey Romeo, where's Juliet?"
I'll probably slip and give my first name at some point, I tend not to be too paranoid about such things. Then again, with the kind of stuff one might be involved with on this board, it might be a good idea to be a little more circumspect. Hell I'm probably already screwed, I use this tag on a couple other boards, that I think I have profiles with my full name on 'em...