Charlie Sheen continues to find new ways to vent about his former employer. Having done radio interviews, TV interviews, filed a lawsuit, launched a stage show, sent Tweets and performed scary Web cam chats, he’s now gone old fashioned: Firing off a letter to TMZ mocking Two and a Half Men creator Chuck Lorre and any attempt to continue the show next fall without him.

“I’m out here with my fans every night,” Sheen writes. “The message is crystal clear. NO CHARLIE SHEEN. NO SHOW. And that’s exactly what it will be for you and your desperate vanity cards (read Lorre’s latest here), every Monday night, a no-show.”

As EW first reported more than a month ago, Warner Bros. is strategizing for the best way to continue Men without Sheen, which will likely involve adding another character. Sheen continued:

“The ratings right now are not a fluke. It’s a big fat mess. A 2.0 demo? That sucks. Almost as bad as you. You’ve been warned … no one cares about your feeble show without me. Shame on you. Not even a phone call to the man that put you on the map. The man that put 500 million dollars in your pockets.”

Of course, Men has been in repeats. And its repeats tend to perform better than any comedy on TV.

Sheen is sort of like a guy who sends angry emails to his ex-girlfriend about how she’ll never meet anybody as awesome as him, not realizing all such letters do is motivate a person to try.