Back in October 2004, Tatum O’Neal was a sobriety success story, having written a successful memoir after apparently conquering a drug addiction so intense that it made Stevie Nicks's habit look pithy. But as the NY Post reports, O’Neal was arrested by the NYPD last night while allegedly buying crack and cocaine just blocks away from her luxury apartment in Manhattan's Lower East Side. When she was busted, the actress supposedly claimed she was pulling a Mendes and researching a bit for an upcoming junkie role. Apparently, her research was tres Method — she was even carrying a crack pipe on her (but it was “clean!”, she said). Even more embarrassing? She reached for the age-old and very dusty “Don’t you know who I am?” in an attempt to get the cops to look the other way. But the cops didn’t bite, and O’Neal, along with her dealer, were taken to the clink. After the jump, we scoured her memoir of recovery to figure out why she may have gone back to the "glamorous" world of drugs.