We’ve all heard, and maybe spoken, the words “you’re barking up the wrong tree.” This idiom carries the meaning of being misguided, on the wrong track, in error. The phrase originated with the description of hunting dogs. Unfortunately, not all the canines in our neighborhood have read about this. Take Sampson, for instance. A lovable black lab, he usually runs the length of his fenced-in back yard as Gibbs and I walk by. His ferocious bark would be more intimidating if his tail wasn’t wagging 100 miles per hour. But one day, Sampson completely ignored us. With every muscle tensed, he stood at the bottom of a Bradford pear tree,…