Oshawa: Dec 15: The final curtain came down on the Oshawa Charity Euchre (O.C.E’s) first half for the 2011-2012 season Thursday at the Thornton/Dundee Community Center with the completion of week 15. It turned out to be a ‘Showdown in Motown” with Joyce Finley winning a cliff hanger battle for first place. She scored 86…