Lindsay Lohan was sober on her 24th birthday (I know, it’s easy to reverse the numbers to 42) but that didn’t stop her from getting into a fight.

“Lindsay was partying and dancing when a cocktail waitress punched her in the face,” an eyewitness at Voyeur nightclub — where LiLo was soberly partying — tells OK!. “Lindsay isn’t sure exactly what she did but it was out of nowhere. Lindsay was not happy about it and yelled back at the girl.”

I’m sure Lindsay tried to grab the girls drink or saw a white powder on her shoe and tried to snort it off, so she had to punch her away. Makes sense in a perfect world.

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