Ronda Rich/Columnist It weighs on my heart, and it can be sobering.Are we losing our sense of humor? Over the past few years, something has shifted.Many of our comedian friends have stopped touring. One has even become a preacher.At times, I watch naturally funny people start to say something, then stop themselves with a quiet, “Never mind.”I come from a witty family—my parents, my siblings, their children. All are qu… More Opinions Yarbrough: Looking at a write-in campaign for governorRich: The surprise of StanLetter to the Editor: Addressing P&Z, BOC meetingsRich: Happy birthday to this great landYarbrough: Remembering a big brother and his big influence