Thirty-one percent of U.S. adults said that their biggest pet peeve in their place of business was loud talkers, a survey said.

Thirty percent said cell phone ringing was annoying, while 22 percent didn’t like the use of speaker phones in public areas and 9 percent hated people using personal digital assistants during meetings, according to the survey by Randstad USA.

A total of 2,318 employed adults was surveyed Harris Interactive for Randstad’s monthly Job Bites survey on workplace etiquette.

Randstad’s workplace etiquette survey shows that American employees are disciplined in their jobs, skipping lunch breaks and working longer hours that cut into the weekend, said Genia Spencer, of Randstad USA.

Employees are focusing on productivity, and they are looking to their colleagues and employers to limit excessive distractions.