McDonald’s is, of course, that most global of businesses — with restaurants everywhere from New Zealand to the North Pole. Perhaps, then, it almost goes without saying that unanticipated items will show up in their menus all over the world. Take this painful example from Hisingen, just outside Gothenburg in Sweden. Forty-seven-year-old Yusuf Bercil innocently bought a burger from McDonald’s, and on taking his first bite found himself with a nail almost half an inch long pierced through his gums. ”It was stuck between my teeth and gums,” he explained. “I managed to get it out but then I threw up. What if one of my children had got the burger instead?” Staff at the outlet had no explanation for how the nail got there. “We have started an investigation and informed our suppliers but can only apologize,” said the manager, Axel Gustafsson. Bercil, meanwhile, has been left with a fear of fast food following the 2010 incident. “We are going to make homemade burgers from now on,” he said.