It was one of those milestone wedding anniversaries for my wife and me. I got congratulations cards. She got sympathy cards. But we had a wonderful couple of days in a romantic location, even doing some romantic things. Like a horse-drawn carriage ride through some beautiful countryside. Along the way, our driver pointed out a forest of tamarack trees which the Indians reportedly called "twice-burning wood." Our driver explained that tamarack trees need a fire in order to reproduce. Their bark is petroleum-based rather than glucose-based like most trees, so it takes a fire to burn off the bark to expose the seeds that produce new life. Interesting!