A near-riot broke out at Changshui International Airport in Kunming last Thursday, as wont to happen in Chinese airports now and then. Pictures surfaced of passengers screaming at airline staff, beating up ground crew, climbing over check-in counters, commandeering the airport’s broadcast system and generally taking their anger out on any computers or ticket machines they could get their hands on.

A sudden thick fog caused more than 400 flights to be cancelled, stranding nearly 10,000 passengers. The cancellations began at about noon and things began to get tense when the airport failed to provide any updated flight information – leaving people with no idea about their scheduled departures all day.