In Brazil, we used to have back in 2010 clubs called "Baile do corredor", where two diferent communities (teams crowd or neighborhood). Would gather in this club and divide, each one in a side, divided by a line.
A dj would start a music, and in the drop, the line would be removed and the two crowds would beguin fighthing (It had rules, like not punching people on the ground)
https://youtu.be/dsBb52QvIsA?si=bNyqKpy3oIwSR63G
https://youtube.com/shorts/awOGYXKZWIU?si=r4bEUOsLx9BeIyBV
Would y'all be down in this? Imagine being able to punch a sen fan and not be arrested, isn't a dream?