Lauren Conrad Makes A New Friend

It takes an awful lot to leave a seasoned media pro like Lauren Conrad rattled - but one guy found a way!

After spending the evening partying at the Crown Club, Lauren was being escorted into a waiting cab last night when - out of nowhere - some crazy dude ran up and started screaming at Lauren and her escort! Naturally, the exchange left LC more than a little shocked - although she did her best to hook her fans up with some autographs, she couldn't sign more than a few before apologizing and taking off!

Anyone have any idea who the mystery jerk might have been? (Of course, whoever he was, he was still a million times nicer to Lauren than Heidi!)