Help! My boss is nuts

A reader from Georgia writes:

I once had a boss who insisted that he was the greatest thing in the telecom industry since Alexander Graham Bell. He went so far as to claim credit for the design of major network operations centers in use by a former Baby Bell. Well, as it turns out, shortly after this man's departure from our company (involuntarily of course) during a conference call with the very Baby Bell of which he claimed to have been such an influential executive, it was discovered that he in fact had been a low level sub-management employee his entire 26 years there, never rising to any great heights, and never influencing anything...goes to show, those who brag often can't back it up.