Its a good test really. If you find yourself using jargon for ordinary things that could just as easily be said in plain words, its a warning sign. This is doubly true if it seems like the reason for this is obfuscation or to make it sound less troubling than it would otherwise to an "outsider".

Now if you get to the point where ordinary words are being redefined to mean something complete different (or even opposite), you are already late for the door. Run.