(Lake Oswego, OR)  --  A man accused of pepper-spraying a Lake Oswego police officer is behind bars.  Authorities say 46-year-old Bill Paul Anderson reached out and sprayed the officer after being pulled over early yesterday morning in the area of Carman Drive and Fieldstone.  Police say Anderson drove off but was later found hiding in a shed, following a short pursuit.  Officials say Anderson, who was wanted on outstanding warrants, has been booked on multiple charges.