Sri Lankan queues are very interesting based on who gets the priority.
The uncontested champions are the clergy and they go straight to the number one in the line. Then comes the equally important pregnant ladies and I guess they enjoy a privileged life during the 9 months of their pregnancy when it comes to queues and seats on busses. Then comes the men in uniform, mostly belonging to the country’s security, they’ll be served first. Then the best customers of the particular institute are served. Then there are friends of the service provider or the teller and this list goes on and on.
If you cannot put yourself into to any of these categories you are in for a long stay where you go in Sri Lanka