Tess Hilmo had a contest on Friday about first favorite books. It made me pull out my favorite book as a child, A Chocolate Moose for Dinner by Fred Gwynne. I loved it because it had double meanings and I actually understood both.
As a writer, it reminds me that every sentence needs to be clear. Even if something seems crystal to you, it may be as opaque as my new black tights to someone else. So it's important to think of how someone who isn't intimately involved with your characters might read something. Otherwise, your characters could end up tackling a fish!