What is the fine-grained topic of the following text: MARCH 6--Fearful of an impending zombie apocalypse, an agitated Illinois allegedly man stole a car, rammed the vehicle into an airport terminal, and then made his way onto the tarmac, where he boarded a vacant plane in an apparent bid to escape the undead invaders. Only return the topic.
Man steals car and boards plane due to fear of zombie apocalypse