A China Southern Airlines domestic flight from Shenzhen to Shanghai was delayed by 6 hours due to a Japanese passenger smoking in the WC. The incident was alerted to cabin crew half an hour before the plane’s scheduled take-off. The reporting passenger said the smoker was able to smuggle a box of matches aboard, and also somehow avoided setting off the smoke alarm. Police made the offender formally admit his error in writing on arrival in Shanghai, after which he was let go. Netizens complained about the preferential treatment he received, saying Chinese people would have been arrested.