Ok so there is an "explain your avatar." An explain your handle." So I thought I would start an explain your sig. Any and all of your current or past sigs will work. I will start:
Old one is "You never forget your first doctor." Which belongs to the British show Doctor Who.
New one is "I lost the game." Which belongs to this: http://www.losethegame.com/
and the relavent xkcd: http://www.xkcd.com/391/ and no you are all still playing the game.