Highways are happy ways (IV) We live in a world that is awash with all kinds of advertisements, all of them coming at us relentlessly from all available media. And that being the case, not many of them stick in the mind after only a short period of time. Those that have been set to music tend to linger on longer than others and it is only a few newspaper adverts that hit that spot of no erasure and stay on the mind, sometimes maddennenly so for a long time after the message embedded in them is forgotten. On the other hand, there are some pithy adverts that simply refuse to die because unlike most, they are actually quite useful. One of such adverts was put out a long while ago by Pirelli, the Italian company that is famous for making vehicle tyres. That advert states simply but incontrove...