Lohan’s arraignment on a charge that she stole a $2,500 necklace from an upscale jeweler wasn’t the first time a judge threatened to throw the troubled starlet in jail. But it was the first time a judge wielded enough power to keep her locked up for a long time. “You’re in a different situation now that a felony has been filed,” Los Angeles Superior Court Judge Keith Schwartz said after the actress pleaded not guilty. “Everybody else has to follow the law,” Schwartz said, noting that he was giving the actress a tamer version of a lecture he’d delivered to her attorney behind closed doors and away from the dozens of assembled reporters. “You’re no different than anyone else. So please, don’t push your luck.” Testing the limits — in the courtroom rather than the big screen — has been Lohan’s calling card in recent months.