Charlie Sheen hit Atlantic City over the weekend to promote his new memoir The Book of Sheen, and the actor didn’t shy away from his messy past — especially his chaotic divorces. While speaking to fans, Sheen joked that his splits from Denise Richards and Brooke Mueller weren’t just emotional disasters — they were expensive ones. He told the crowd, “I had four kids during those eight years and went through two really messy divorces… and pricey!” His advice to a young fan? “Sign the prenup — if you can. You’ll get pushback, but maybe she needs you to sign one too.” Sheen admitted that during his Two and a Half Men years, his personal life bled into work. “It wasn’t the job that broke me — it was everything outside of it,” he said, reflecting on his wild years that led to his firing in 2011.