From Robert S. Desowitz, New Guinea Tapeworms and Jewish Grandmothers, Norton, 1987, 188.

In developing this chapter's theme--the relationship of behavior to health--I should first like to return to the subject of bowel habits. My wife, a lady of intelligence and sensitivity, adamantly maintains that the reading public is not ready for a discourse on feces. It is with some temerity that I disagree. Shit as a source of infection with an array of pathogens is too important to be dismissed because of its aesthetic failings.