In response to Francesca's "Fog" post, I completely agree. The fog is used to cover up the patients character. For instance, when McMurphy is singing in the bathroom people are absolutely shocked! "Singing! Everybody's thunderstruck. They haven't heard such a thing in years, not on this ward"(78). (probably your page 73ish). Bromden then goes on to say that the black boys treat McMurphy differently because he is not fearful of them. This goes into the power of laughter etc. But getting back to how it relates to teh fog and invisibility, McMurphy is slowly pulling the patients out of the fog. He getting them to have opinions and vote in meetings. Thus, he is figuritively, and literally pulling the patients out of the fog that the ward has covered them with.