A United Airlines flight had to divert to Belfast International Airport in Northern Ireland, on the evening of June 20.
The plane was on its way from Rome, Italy to Chicago when a 42-year-old passenger Jeremiah Mathis Thede asked for nuts or crackers. Authorities said he was given some nuts but he kept-on demanding for more and showed an erratic behavior. The pilot became concerned due to situation and decided to make an emergency landing.
The plane landed safely and all 282 passengers were flown to Chicago next day.

LOT Polish Airlines flight LO-405 made an emergency landing in Dusseldorf, Germany, on April 19th.
Air France flight AF-457 made an emergency landing in Sao Paulo, Brazil, on December 10th.