A woman who says she shredded knee ligaments when she fell during a “Shake it Like Shakira” contest can't sue the New York bar that staged the competition. Calico Jack’s Cantina is off the hook after Megan Zacher's lawyer failed to convince a judge the bar “knew or should have known” that the imitation of Shakira’s patented gyrations by nonprofessionals was “dangerous and likely to cause injury,” the New York Post reports.