They Did What? 9 Celebrities Who Lost it in Public

4. Amanda Bynes

When Lindsay Lohan was breaking all gossip news sites with her constant drug-escapades, Amanda Bynes was still a tame Nickelodeon role model. However, in 2013 the actress took to Twitter and released a row of strangely mean and inappropriate statements. From posting pictures in her underwear, to piercing her cheeks, attacking other celebrities based on their beauty, and throwing a bong out of her Manhattan apartment window, Amanda definitely showed us her wild side. In her defense, she was sent to a rehab facility where psychiatrists declared her bipolar and is now receiving appropriate treatment.