My Mom just learned that you "home in" on something, not — as she always believed — "hone in" on something.  She’s been saying it wrong all these years.

So have I.

P.S.  At least I knew it was a "dog-eat-dog world", not a "doggie dog world".

UPDATE:  If you look at the post directly above this one, you’ll see a large quote from the New York Times, which includes this sentence: "The Iraq war, which for years has drawn militants from around the world, is beginning to export fighters and the tactics they have honed in the insurgency to neighboring countries and beyond…." [Emphasis added]