I'm a big fan of David Mamet's work and have enjoyed all of his movies (though I thought STATE & MAIN was overrated). Just re-watched THE SPANISH PRISONER last night. Great movie, but I have a question -- At one point in the film the following exchange of dialogue occurs between Joseph (Campbell Scott) and his assistant Susan (Rebecca Pidgeon): JOSEPH: Funny old world. SUSAN: Funny old world? Dog my cats. JOSEPH: Dog my cats indeed. So my question is simply: Huh? What the hell does "Dog my cats" mean? Anyone?