What is the fine-grained topic of the following text: The 46-year-old actor - who suffered drug and alcohol problems in 2011 before being axed from 'Two and a Half Men' after launching a number of rants at creator Chuck Lorre - has apologized to the American public for his actions last year, and he has compared his wild behavior to having an out-of-body experience. Only return the topic.
Charlie Sheen's apology for his actions in 2011 and comparison of his behavior to an out-of-body experience.