Rep. Gabrielle Giffords (D-AZ) said her aides had to call police at an event last week when an attendee dropped a gun. "Yelling and screaming is counterproductive," Giffords told the crowd at a "Congress on Your Corner" event, before an attendee dropped a gun. Her aides called the police. “We have never felt the need before to notify law enforcement when we hold these events,” said Giffords' spokesman. A leader of a Tuscon group opposing a health-care overhaul said no one was threatening Giffords. “But she does need to get in front of her constituents and answer to her constituents,” he added. In other health-care debate news, one of the country's largest unions, the Service Employers International Union, was "deluged" with threatening calls and death threats due to its involvement in town-hall health-care discussions, The Huffington Post reports. “I suggest you tell your people to calm down, act like American citizens, and stop trying to repress people's First Amendment rights," one caller said. "That, or you all are gonna come up against the Second Amendment."