Mobsters sometimes use nicknames with each other to avoid easy identification by the feds. The mob boss Vincent "Chin" Gigante (whose nickname was "Cinzini," short for "Vincenzo",) insisted that his name never be spoken aloud. His wiseguys were told instead to rub their fingers across their chin or, at one point, to refer to him as their "Aunt Julia." Meanwhile, the press dubbed Gigante "The Oddfather" after he began posing as a schizophrenic in the late 1960s.By Daniel Engber