Foreigners like you often face difficulties in understanding the logic behind this process. You may ask : who erupts? Officially, nobody does, because everyone is under jurisdiction of King #9. His castle is annoyingly huge for the population.

     It was supposed to please and entertain them, but all of them dislike it instead.

     A total failure. In fact, the situation gets worse each time one of them wants to enter or leave their room, because it sometimes causes them to get upset for no reason. That's because of their disease : sometimes their eyes become red and they start staring at you like crazy.