Beer (or whatever alcoholic beverage…) over jerjer.
The reasoning behind this rule is pretty simple. Jerjer you can’t always get, even if you have money. Beer is always there for you, sometimes even when you don’t have money. Can you imagine asking your friend to buy you jerjer? I didn’t think so. Therefore when asked to choose between beer and jerjer, your loyalty should be to beer, which has been and will always be there for you.
The only exception to this rule is jerjer that’s already about to happen (i.e. when you’re in the cab, in the room, or with your pants around your ankles already).