Almost four years after his first foray into unfamiliar concert territory with his highly acclaimed Ridiculously Self-Indulgent, Ill-Advised Vanity Tour, “Weird Al” Yankovic will be pressing his luck again, this time with The Unfortunate Return of the Ridiculously Self-Indulgent, Ill-Advised Vanity Tour. The University of California, Davis, appearance at the Mondavi Center for the Performing Arts is Sept.