The joke was that the groom had to ask passersby for money, and he would be released when he had collected 50 euros. Some well-wishers actually threw coins into a cap lying on the ground. Each donation was accompanied by cries of jubilation, and the captive received a sip of beer from his friends as a reward. It seems that the groom did not take offense at his friends, although many commentators are sure that he should have. The mockery was both the punishment itself and the reward sips of beer - and what if the unfortunate man wanted to empty his bladder? I want to believe that everything went without such unpleasantness.