Putting on a major political event can be pretty exhausting in North Korea, where everyone is expected to pitch in.

Ahead of the ongoing congress of the ruling Workers' Party, North Koreans were called upon to put in massive overtime to boost production and show their devotion to leader Kim Jong-un in a 70-day "loyalty campaign". And that's in addition to hours upon hours of rehearsals for huge rallies that will provide the de rigueur show of national unity when the ruling party wraps up its first congress in decades.

So how does a tired North Korean unwind?

Beer. Beer. And more beer.