The New York Post has reported that a man in China purchased a first-class plane ticket and then used it to eat for free in the VIP lounge at Xi’an International Airport for a year! 
The man bought a first-class, fully refundable ticket from Eastern China Airline and used it to gain access to the airport’s VIP lounge where travellers eat for free. He proceeded to rebook his seat 300 times in one year before the airline picked up on it and put an end to his scheme. 
The passenger was eventually confronted by airline officials who put an end to his scheme. He ended up cashing in his ticket for a full refund!