It often happens that a misreading is more interesting than what I wrote originally and I end up changing the story. I wrote a whole song based on a mondegreen I heard in a Weezer song ("Disco Noose"). And as long as I'm on the topic of Weezer songs, Sumana and I agree that "Beverly Hills" is a much more interesting song if you replace the line "Rolling like a celebrity" with our mondegreen "Ordering the soup of the day".
Update: Kind of a simple one, but I just referred to Burn After Reading as Burn Before Reading. There are at least two ways that's a better title.
(1) Mon Jun 02 2008 22:36 Misreadings:
So now I've written two stories ("John Versus the Sreps" and the new one) where I write an ending where something happens (a radical concept, I know), and someone reads it and thinks I wrote an ending where the exact opposite thing happened. This is called dramatic irony, but it usually happens to the characters, not the person writing the story.