I believe the William Tell Overture, in fact. It was fairly disruptive. Signs have been posted in Fowler's courtroom, clearly warning everyone to turn off all cell phones. Without the power of a court behind them, most folks simply hope that people will learn some manners. And technology can help.
Many phones can vibrate instead of ring.
By disabling those ringers, you can still get your calls. WFAA-TV Co. All Rights Reserved.