This past Friday, the weather was nice enough to go flying. As my company has been giving us Friday afternoons off, I could have gone. However, I was feeling somewhat tired, and I examine what my motivation would have been had I gone. One of the aspects of owning and maintaining an airplane of that vintage is that you want to run the engine on a fairly regular basis. If you let it sit too long, moisture can make its way into the cylinders and cause some corrosion. Over the long term, it reduces the lifetime of the cylinders, and even the entire engine. So, something I've tried to do is fly the plane every couple of weeks or so. Friday, I realized that my main motivation was the obligation I felt to run the plane as often as I could. But I determined that it wasn't really enough of a reason to go absent any others. So I decided to stay home. I figured I'd fly it again in the next couple of weeks and that would be plenty soon enough. Yesterday, my wife became ill. We don'...