First I thought it would be kind of Amerinca Wrestling but while the actors are "fighting", what is completely show-off, the crowd keeps on insulting, shouting and laughing at each other. The people in the lower part, closer to the fighting "actors" are the rich ones, the ones futher away on the gallery are the poor ones. At least for this evening event. That is why the "poor ones" keep on insulting and shouting at the "rich ones" and vice versa.
Being in the middle of that with a bit of spanish knowledge is incredibly funny and unbelievable! Here the Mexicans keep on shouting bad words to each other for hours and every good, old German would be amazingly insulted and stand there slapping himself checking if it is the real world as it appears not to be :)
Still, after the event everyone goes home happy and free of anger or whatever ;)

