Dude, all the pressures of being a Hollywood starlet--going to parties, changing boyfriends, deciding which pair of Keds to wear--can really take a toll on a gal. At least, that's what I'm assuming is the case here. Because it seems like every time we turn around, Mischa Barton's lighting another fattie, presumably to take her mind off all the stress in her daily life. And this time, the former star of "The O.C." can be seen on the yacht of fashion designer, Roberto Cavalli, getting her blaze on off the coast of France.

Perhaps she's trying to forget what Cisco Adler's giant balls look like. Lord knows I am.

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