Joan Rivers has always been an equal-opportunity offender but plenty of celebrities aren’t thrilled to be the butt of one of the veteran comedian’s jokes. Count Kristen Stewart as the latest to take offense. Rivers’ rep confirmed to E! News today that they got a call from Stewart’s attorney regarding a crack in Rivers’ latest book, Diary of a Mad Diva, that is a thinly veiled reference to K.Stew’s 2012 affair with then-married Snow White and the Huntsman director Rupert Sanders.
