Let it be known I only play sane respectable people. That being said its almost to easy to break sithies. To break sith you simply play in their inherit paranoia. They'll do the rest for you and you can sit back and watch the show. Dead acolyte here and there, a masters plan messed with. Or I prefer the more direct approach myself, perhaps a package containing organs of the aforementioned acolyte or slice him in half darth Maul style, but still alive, that always makes an impression. God I was raised so wrong.