Buying a good beer has never been this complicated! Check out the instructions and the promises you have to make if you would like to buy beer from The abbey of Saint Sixtus of Westvleteren. Amongst the instructions and warnings:

Our beer is sold in limited quantities and the reservations which we accept are always for a particular type of beer. Since we want to serve as many customers as possible, orders are limited to one order per car per per telephone number within any given month.
Anonymous numbers cannot be used.
You yourself must be the consumer. The receipt stipulates that the beer is not to be sold commercially to a third party. We reserve the right to prosecute offences.

Not only are you making promises to the monks – they even reserve the right to prosecute you if you break your promise. What is the religious punishment for lying to a monk?