Now we can see where Ryanair were coming from.
This man, who was on a flight Hong Kong to Vladivostok, Russia, had to be subdued by six passengers after he allegedly got drunk and insulted other passengers.
While the video certainly portrays a man who isn't exactly behaving himself, the barage of kicks and punches he receives was probably a bit over the top.
Once the group of passengers had brought the man to the ground, they proceeded to tie him up using the planes seatbelts and some tape. This is where he stayed until the flight landed in Vladivostok and local police took him into their custody, as you would expect.