A McDonald’s customer was arrested after calling police to complain about his Big Mac hamburger having onions – and challenging the restaurant’s manager to a fist fight. Leslie McDonagh, 53, was visiting the fast food chain in Manchester, England, around 10:30 p.m. on a Friday when he claims he received the “wrong meal” that he could not eat because of a “severe allergy” to onions, Metro reported. According to Metro, McDonagh, who had been drinking prior to visiting the McDonald’s, threatened to fight the manager before calling 911 to report the mixed-up meal.