A Minnesota mom is fuming after her 9-year-old son was suspended from school for mimicking Michael Jackson's famous groin-grabbing moves during a performance of "Billie Jean" at a fundraiser last week Mindy Boberg says the principal of St. Stanislaus in Winona, Pat Bowlin, tore into her and her son, Lenny, immediately after the boy's Jacko act on Thursday night, claiming the crotch-clutching portions constituted "gross misconduct," the Winona Daily News reported. "[Lenny] is heartbroken," Boberg wrote on her Facebook page. "He worked so hard on this and then to have your principal scream at you immediately after." "And as of...