The memory is lodged in my brain’s recesses, as closely as mistletoe clings to mesquite trees. Our parents – neither with educational opportunities beyond high school – provided commonsense counsel for my brother and me.One admonition on their rigid “you-ought-to-do” ladder has remained on the top step. Their advice was sound then and is so today.“Don’t be pokin’ fun at anybody,” they warned, always reminding us that whatever goes around comes around.Firmly established in the group of folks who soon will be closer to age 90 than 80, I’m sure that we all regularly feel the sharp jabs of embarrassment,