A newcomer to tidal Potomac River bass fishing recently sent a blistering note to a popular Web site, the Bass Fishing Home Page. With tongue in cheek, the e-mailer wondered what happened to common boating courtesy on one of the nation's top bass fishing waters. He signed his name Tony, and although some sorely needed word clarification has been added, here is the note from www.wmi.org/bassfish: "[I] was wondering. Just moved or should I say [got] stationed here from Ala. [I] just want to get the rules right. Is there no common courtesy on the lakes and rivers here? Is...