I think that the appearance of not documenting code is best. If in fact you've got external documentation for you're own use... well, you have the best of both.

Documentation Absense is a form of job security. But if you're the boss, you have to make sure this nonsense doesn't happen in your shop. :)

But then again, if you're working on someone else's code, its not always wise to believe the documentation.

aka j