(CHICAGO) — A group of employees from 13 McDonald’s restaurants in Chicago filed a lawsuit Thursday alleging that the company’s drive for profits puts workers at “daily risk” of physical attack by dangerous customers. In the lawsuit filed in Cook County court, the 17 workers say McDonald’s has failed to protect them from what they say is a “citywide and nationwide” pattern of violence and that police respond to more than 20 911 calls every day regarding Chicago McDonald’s restaurants.