Wearing nothing but his 12-string guitar, 65-year-old Paul King smiled wide for the camera, knowing full well his photograph would be seen by clients, friends -- even complete strangers. "It's no big thing," said King, one of a dozen members of Rotary Club of Concord who wear their birthday suits for an upcoming calendar. "We're having a ball ... an absolute ball, doing this. There are going to be some people who might be slightly offended, but the majority of people think it's a great idea," he said. It's an idea King and fellow Rotarian Memory Woodard, a Clayton resident,...