Rep. Trey Gowdy (R-S.C.) grilled a University of Baltimore law professor during a Wednesday House hearing and made a compelling case as to why a special counsel is needed to investigate the IRS scandal. At one point, he even offered the professor some “free litigation advice” when he refused to answer one of his questions that seemed pretty straightforward.

Professor Charles Tiefer was brought in by Democrats as an expert to help determine whether the House Judiciary Committee should appoint a special counsel to investigate the IRS scandal. Tiefer, who previously served as solicitor and deputy general counsel of the U.S. House of Representatives, was also recently asked by Democrats to provide a statement on House Speaker John Boehner’s lawsuit against President Obama, which he called an “embarrassing loser.”

“Professor Tiefer, would you seat a juror who referred to your client as an obscene body part?” Gowdy asked, clearly referring to emails that show ex-IRS official Lois Lerner referring to conservatives as “assholes” and “crazies.”

Professor Tiefer didn’t say a word for about five seconds before he muttered, “I’m sorry?”