Although Secret Service Special Agent Michael Schilling is adept at assuming a low profile while protecting the president, he can't help betraying his admiration for his idol, comedian and former Blankman star David Alan Grier, sources said Tuesday. 'While on counter-sniper duty, sometimes Michael will get on the headset and talk about what hilarious thing Grier did in a similar situation on DAG,' said fellow agent John Matthews, referring to the short-lived 2000 sitcom in which Grier played a Secret Service agent. 'We can't even file a simple report without him relating everything to an In Living Color sketch.' Schilling is currently facing disciplinary suspension after he followed Dick Cheney to the podium before a recent speech to insist that the vice president borrow one of his DVDs of DAG's first season. 