I think we all know that people from Ma/Boston have a serious problem w/RRRR's?...They say...PAAAAK the CAAAA, for example instead of Park the car. But, if your call sign Mystic river, means anything you might just be from Boston and already understand that. It may have all begun w/the crew of "Old Ironsides". Hizzzah instead of Hurrah...makes sense.