"It's always been dream of mine to interrupt a Supreme Court justice."

Rep. Kevin Yoder (R-Kan.) to Justice Anthony Kennedy. 

At oral argument, the Justices interrupt the lawyers all the time, and what all the lawyers do is instantly stop talking when the Justice begins to speak. Now, members of Congress get the same thing at hearings. The person testifying shuts up as soon as the member speaks, even to say something entirely inane (like "It's always been  dream of mine to interrupt a Supreme Court justice").