Tonight, Bert and Jayme Coates will bring their electronic gear to the Central Saloon and go down to its basement to begin hunting for ghosts.When they pull up in their 1978 Chevy Step Van emblazoned with "Northwest Paranormal Investigation Agency," Bert and Jayme Coates inevitably get friendly greetings from people. And why not? A 2008 Harris Poll said 44 percent of Americans believe in ghosts. That means somebody sitting right near you at the office is a believer, if it's not you. Friendly greetings are what the Gold Bar couple got Friday afternoon, as they parked in front of Central...