I wonder if the Catch Me if You Can guy counts. He apparently lied about a lot of his adventures as a scam artist, making him more of a fabulist.

However, if anyone taken in by his stories were to complain publicly (say, a book publisher or something), they'd be admitting not only to being a rube, but a rube to a liar who had already claimed publicly to be a scam artist. Even worse, that scam would be real and count as a success, restoring the scam artist's tarnished reputation from fabulist back to bona fide scam artist.