(Portland, OR)  --  A man who's accused of throwing bodily fluid on women in Portland-area grocery stores is behind bars.  Police say 47-year-old Manual Banuelos-Alcala of Beaverton reportedly followed unsuspecting women in each of the four stores, threw the substance at them and walked away.  Investigators say Banuelos-Alcala was spotted yesterday by officers in the parking lot of the Safeway on Southwest Barbur Boulevard and was arrested without incident.  He's facing charges of third-degree sex abuse.