When I was a teenager, my father made a video for his college class on video photography, wherein I was the star. I was showing people how to change a tire with jack, crow bar and lug nuts. I have found this to be a valuable skill which I learned well. I was surprised to discover that many people cannot do such a thing. I was even more surprised when I was evaluating cars for suitability as to my vagabond ways to discover that some cars do not have spare tires. I was haggling over $500 on a Chrysler Pacifica in San ...