Open mouth, insert backhoe BY DAVE BARRY Apr. 24, 2005 (This classic Dave Barry column was originally published on Dec. 20, 1998.) I was feeling pretty good when I went to see Stanley. Stanley is my dentist. I chose him because he meets the American Dental Association's single most important criterion for selecting a dental-care professional: He looks exactly like Willie Nelson. If Stanley put on a headband and got on stage at a country-music concert, the audience members would absolutely believe that he WAS Willie Nelson, except that instead of telling them not to let their babies grow up...