Plink! There, I heard it again, then again; the distinct plink of a metal golf club hitting a ball. What made it remarkable was the timing. It was an hour after dark on Saturday night. I sat by a campfire at Robinson Park by the glass-smooth surface of the Llano River with Boy Scout Troop 301 of Llano. Looking in the right direction we could see the eerie green glow of golf balls in flight, because the city park is adjacent to the city golf course. It's really not a secret that tent camping is ...