Barton was dressed as a peacock and hanging out with friends at the Park Bar when she got into a fight.
Another bar patron reportedly dumped his drink on Barton because she had stepped on his foot. "I was standing beside this guy at the bar when Mischa went past us carrying two drinks. The next thing I knew he threw his drink over her back and she turned around and asked him: ‘Did you just throw a drink over me?’ The man responded that the drink was in retaliation for Mischa stepping on his shoe and she threw one of her drinks in his face," a witness told RadarOnline.
Things got worse when Barton turned to her friends and told them what happened. Soon, the star’s friend was confronting the man and asking him to leave. The two then began a brawl on the dance floor before they were both escorted out of the club by security guards.