My old man was on the flight last night. I just spoke to him to make sure that it wasn't him who was causing all the ruckus. He indicated that the loon concerned had been a bit weird in the terminal before hand also and was seated a row behind him on the aircraft. Behaviour included being 'inappropriate' with other passengers waiting and so on. Singaporean police were, as usual, pretty efficient at getting him off the aeroplane in SIN.