There's some, er, discussion as to the best way to follow XP here at work. While everyone acknowledges that we don't follow XP terribly well, there's considerable disagreement as to what XP actually is. Further, much of the disagreement seems to stem from people repeating anecdotes about XP rather than learning for themselves. Today's anecdote was "XP says you're not supposed to think about the future."
I replied "no, XP doesn't say that. It says that you should not add unrequested features in anticipation of future changes."
What's your take on this and what other XP myths do you have to deal with?