.fortune

In the Xbox version of Halo: Combat Evolved, if you create a new profile (or edit an existing one), or creating a map name and call 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.

List of Fortunes

 * All your hard work will eventually pay off.
 * Everything lies in silence.
 * If anything just cannot go wrong, it will anyway (The very basic and first of "Murphy's Laws").
 * Nature always sides with the hidden flaw. (Also a subdivision of Murphy's Law)
 * Never wear your best pants when fighting for freedom.
 * Rest is good, but idleness is its ugly brother.
 * Don't wear your best pants in war (rare).
 * Smile when you're ready.
 * You cannot fall off the floor. (Also a Murphy's Law)
 * Your luck is about to change.
 * Sorry, this fortune is temporarily out of order. (Rare)
 * I like beans. (Rare)

Trivia

 * This joke is also present in Marathon.