Two and a Half Men

In the 11-page letter, obtained from sources connected to Charlie, Warner Bros. states, "Your client has been engaged in dangerously self-destructive conduct and appears to be very ill."

The letter then goes on to describe Charlie's hijinks, including trashing the Plaza Hotel in NYC, coke binges, on-set failures because of drug fatigue, and diatribes against "Two and a Half Men" creator Chuck Lorre.

The letter also notes that Charlie derailed production when he went into rehab, and then he fired his sobriety coach. In fact, Warner Bros. claims it was so concerned about Charlie's well-being, "Warner Bros. had an airplane waiting" to take him to a treatment facility ... but Charlie would have none of it.

As for why Charlie got fired, the letter says there is a clause in his contract saying they can fire a performer who commits "a felony offense involving moral turpitude."

The letter says, "There is ample evidence supporting Warner Bros. reasonable good faith opinion that Mr. Sheen has committed felony offenses involving moral turpitude (including but not limited to furnishing of cocaine to others as part of the self-destructive lifestyle he has described publicly) that have 'interfere[d] with his ability to fully and completely render all material services required' under the agreement."

In short, that's why Charlie was fired.

Charlie's lawyer, Marty Singer, has demanded Warner Bros. pay Charlie for the eight canceled episodes -- or else.

Charlie tells TMZ, "If they do that then they deserve their failures and the follies."

But Charlie is getting all hot and bothered for nothing. People directly connected with the show tell TMZ ... the off-handed comment about Stamos replacing Sheen was a joke.

Sheen blasted CBS honcho Les Moonves for not firing "Men" creator Chuck Lorre ... and then scoffed at the studio for giving him waaaay too much money.

Sheen also ripped a false report that he checked himself into rehab this morning -- because he obviously isn't at a rehab facility -- and the at-home interview is all the proof he needs.

Among the hits – Charlie explained that he “hopes” his five kids ask him about all of the drug use one day … so he can fill them in on all of the “epic” stories.

Sheen also explained that his father, Martin Sheen, should stop passing judgment, because Charlie’s a grown ass man ... and can make his own life choices.

Charlie also told a story about how he woke up in the middle of downtown L.A. by himself when he was 7 years old … and had to find his own way home.

You can watch the full interview 42-minute above or

The letter reads:

What does this say about Haim Levine [Chuck Lorre] after he tried to use his words to judge and attempt to degrade me. I gracefully ignored this folly for 177 shows ... I fire back once and this contaminated little maggot can't handle my power and can't handle the truth. I wish him nothing but pain in his silly travels especially if they wind up in my octagon. Clearly I have defeated this earthworm with my words -- imagine what I would have done with my fire breathing fists. I urge all my beautiful and loyal fans who embraced this show for almost a decade to walk with me side-by-side as we march up the steps of justice to right this unconscionable wrong.

Remember these are my people ... not yours...we will continue on together...

CBS and Warner Bros. say, "Based on the totality of Charlie Sheen's statements, conduct and condition, CBS and Warner Bros. Television have decided to discontinue production of 'Two and a Half Men' for the remainder of the season."

The decision comes several hours after TMZ posted a story in which Charlie Sheen challenged creator Chuck Lorre to a fight, calling him "a stupid, stupid little man and a pu**y punk that I never want to be like."

Sources connected with the production tell us ... Charlie's comments to TMZ were the final straw.

Jones -- who just turned 17-years-old -- guest starred on "Hannah Montana" back in July ... and because he was a minor when he signed his contract, the docs had to be filed with the L.A. County Superior Court.

According to the paperwork, obtained by TMZ, Jones raked in a cool $2,808 -- plus he got his own dressing room -- to play an "obnoxious new kid" named T.J. on the show ... a one week working commitment.