late 1970s mcdonalds menu says hamburger and next line is slice of cheese. smart ass kid rolls in and orders just a slice of cheese. cashier has to bring over the manager… doesnt know how to prepare and serve it. manager has to call district manager, who has to call corporate. its on the menu they have to serve it, and safely. they end up heating up a slice on wax paper. after that all the mcdonalds menus in the country is changed to say cheeseburger.