A sign advertises the double filet-o-fish in front of a McDonald's restaurant in Chicago on March 31, 2010. The demonstrators, organized by Corporate Accountability International, claim McDonald's uses Ronald McDonald to market unhealthy, fatty foods to children and are calling for his retirement. UPI/Brian Kersey | License Photo
Police said the customer, who was reportedly upset about the amount of time employees were taking to deliver his food, then threatened the employee and slapped him in the face.
The attacker left the restaurant with a fish fillet sandwich, police said.
