A few years ago i witnessed a similar encounter. I was stood at the edge of the dance floor when i felt some light kicking at the calf of my leg, when i turned 2 girls were really going for it. A short haired girl was pulling a long haired girls hair over the front of her head and kicking and punching her at the same time. The bouncers just watched from a distance, then another girl appeared who broke it up. It turned out that the 2 girls fighting were the previous and present girlfriends of the peace maker.