The furious 45-year-old superstar says he heard that he was officially dumped from his hit show Two And A Half Men just minutes before the rest of the world.
And he appeared most upset that the news - which had appeared to most to be almost inevitable - came via a phone text message rather than in person.
'I got a text or something - these guys are such yellow cockroaches that they didn't even have the decency to call me,' he angrily said in a call to a US TV show just minutes after getting the news.
'I put 5 bill[ion] in their cheap suit pockets and another half a bil' in what's-his-cheese's pockets and this is the f***ing respect I get? It's just deplorable and they should be ashamed of themselves!'
He added, 'They exercised such a cheap move and this is so silly and so transparent and… it's so juvenile. It is the work of infants.'
He insists that his firing had nothing to do with his mad media blitz, but instead just that his TV bosses never understood him.
'I guess if you can't process a guy, or realize his value, you must terminate him,' Sheen said. 'That's real high-brow thinking, really evolved thinking. I don't know. It is what it is.
'I'm more worried about my children [Bob and Max] right now than any of this nonsense, you know.'
He added, 'It is the work of silly infants and it's just - if this is what it had to come to, to get me out of those silly shirts, then so be it.
'So maybe I'll wear one, just on the final day when I go and remove all of their bazillions.'