You can't disclose lies. There is no breach of confidentiality if what you write is all lies. BUT if what you write is true then you have breached it. So the donjohn lawyers by issuing this CEASE AND DESIST have concomitantly dignified it and elevated it to something that is truthful. In other words the bozos just shot themselves in the foot again. Well second-rate lawyers are the only ones who would work for donjohn. The elite don't want anything to do with him. You see the result.
