Summer in Houston borders on unbearable. As a friend of mine once said, “It’s like living on the surface of the sun…under water.” One result is that mowing one’s lawn becomes a dreaded ordeal to be avoided at all costs. One additional obstacle more me has been the lawn mower itself: slow to start, running rough, and in general disagreeable all summer. I initially thought it was aping the attitude of its owner like a pet. But I became convinced that the lawn mower was on its last leg and would need to be replaced.