In the Xbox version of Halo: Combat Evolved, if you create a new profile, rename an existing one, or create a map name and name it ".fortune" (Dot located with shift on), a random saying will appear on the screen. The ".fortune" on the text box will then also instantly disappear, thus rendering ".fortune" an impossible account name. However, if you place a symbol at the beginning (Such as a left parenthesis) to make ".(fortune", and subsequently use the arrows to move to and delete the parenthesis when finished, ".fortune" will remain, allowing you to use it as a profile name.