This whole Mischa Barton thing is turning out to be just as strange as her breakdown. She claims someone slipped the date rape drug into her drink at her birthday party. Couple issues here...one, the date rape drug puts you to sleep, it doesn't wire you and make you scream things. Secondly, Mischa has a history of mental health issues, so there is potential she just had another breakdown and is trying to cover it up. Check out the distubring video of the breakdown HERE!