I experienced the joy of a flat tire on a freeway once. Since I was a capable, smart, educated woman I fully intended to help the roadside assistance guys out by getting the spare tire ready while I waited for them to show up. This story does not have the ending I envisioned. While I am capable, smart and educated, I do not have the strength of a grown man to extricate a full-size spare tire out from its cage underneath the bottom of a SUV. Nor do I want those kind of manly man muscles. That would look funny. All this to say, when it comes to projects involving tires, I’m…