When she does n’t comply, he proceeds to rip the register from her station before escaping back through the drive-thru window. After climbing through the drive-thru, the masked gunman escaped with a cash register. ( DeKalb County Police Department) THE ONE MCDONALD'S ITEM YOU SHOULD NEVER ORDER, ACCORDING TO AN EX-EMPLOYEE Customers waiting in line inside the McDonald’s reportedly fled the restaurant, as did a car waiting for their order outside. I hope they get him.