Here at the Terminal we've shown that we're not above toilet talk. And from the response of our readers, neither -- it seems -- are they. So, as World Toilet Day 2008 draws to a close, let us turn our thoughts once again to the airplane lavatory.

First off, let's put a persistent -- but entirely wrongheaded -- myth to bed. Airlines don't jettison effluent mid-flight. Here's what the FAA has to say in a fact sheet on the subject:

On...