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One of my recreational activities, for some time now, has been that of jogging. Despite being a long-time jogger, I have to confess that jogging remains an activity that does not come easily to me. As a jogger my efforts are risible and my jogging is probably best described as "shambling". I cannot claim to be naturally athletic and somehow the fitness that most joggers acquire through regular exercise eludes me. To compensate for my natural lack of fitness, I have been compelled to resort to such desperate stratagems as running in as lightweight a running attire as possible and wearing the thinnest-soled trainers available in sports-shops. The latter of course has a drawback: lightweight, thin soled, trainers are not really considered to be best suited for running. The received wisdom about appropriate footwear for running has it that they should be specially moulded to provide support for the arches of the foot and have soles which are stout enough to absorb the shock that the human frame receives as each foot lands on a hard road surface. Such shoes however, could scarcely be my preferred choice since the thought of running in stout-soled shoes rekindles in me all the painful memories I have of gasping for breath whilst running in army boots in my younger days as a serving soldier. I always regarded it then as a form of torture inflicted on less fit soldiers like me by the Army's sadistic PT instructors. I therefore studiously ignored all good advice about the correct running shoes and remained steadfast in wearing the minimalist footwear that I fondly imagined to be performance-enhancing for non-athletes like me. I may well have persisted in pursing this course of idiosyncrasy had it not been for a chance event that normally need not have concerned me at all. The event itself was quite dreadful: a ram-raid on a sports-goods shop at Chingford Mount, - not very far from where I live in London. I happened to be walking past the shop and was quite saddened by the scene that I witnessed. The shattered shop-front and the ransacked interior of the shop were a grim testimony to what had occurred. I recognised the man standing in what remained of the shop-doorway as the owner of the shop. I had seen him before on my occasional visits to the shop with my late wife to get trainers for our grandchildren. The shop happens to be a family-run business and the courtesy and good manners of family members who serve in the shop had always made my shopping trips there a pleasant experience for me. Seeing the owner standing in front of his now devastated shop, I could not help feeling an overwhelming sense of sympathy, although what I did next was, I realise now to my embarrassment, something prompted more by an idle curiosity than my deeply felt sympathy: I asked the man what had happened, - a question that he had probably already been asked a dozen times that morning. To his great credit he retained his good manners, and even managed to raise a friendly smile as he informed me that the shop had been ram-raided in the night. Everything in his demeanour was a lesson in stoicism in the face of adversity which I found so touching that I felt it deserved some helpful gesture on my part in return, no matter how trivial. I decided therefore that this was the time to get the new trainers that I had been contemplating buying for some time but had hitherto procrastinated for various reasons. I walked into the shop and after trying out one or two pairs of trainers, selected a pair that was predictably of the thin-soled variety that I always preferred. This turned out, to my surprise, to be a pair of ladies' gym trainers, as the owner soon informed me when I took the pair to the till for payment. I am not sure if my disappointment and confusion were all too obvious, but the owner felt obliged to offer to help me with the selection of a suitable pair of men's trainers. He showed me a couple of pairs which he recommended as being good quality as well as reasonably cheap. To my alarm both had the thick soles that I had always imagined to be inimical to my puny efforts at jogging. Not wishing to offend the shop owner, I rather hesitantly mentioned my absurd paranoia that thick soled trainers were akin to heavy army boots and would therefore prove my nemesis when engaged in jogging. If the good shop owner were perplexed by this bizarre assertion of mine, he did a remarkable job of keeping a straight face and maintaining his professional manner. With commendable forbearance he explained that there was no question of these shoes being heavy. They were ergonomically designed to be both light on the foot and provide maximum support for the foot's arches. Normally, I should have dismissed this explanation as typical sales talk but there was something disarming about this shop owner's obvious honesty which persuaded me that perhaps what I was being told was simply a frank comment on the merits of the trainers that deserved to be heeded. It was time, I felt, that I rose above my phobia and committed myself to using the kind of running shoe that was regarded by most sensible people as being the most appropriate one. Assailed as I was with lingering doubts, I willed myself to putting aside my reservations and agreed to the purchase of the trainers that the owner had recommended to me. I need not have tortured myself as to whether I had made the right decision. My trust in the shop owner's advice was fully vindicated. The shoes, as it happened, turned out to be the most comfortable as well as the most lightweight shoes that I had run in to-date.

This happy outcome nevertheless gave me some food for thought. Rational beings like to believe that their actions are the result of rational thought. That I should have eschewed the use of what might be regarded as the ideal footwear for jogging for so long, appeared to me on reflection not so much a harmless idiosyncrasy as an illustration of irrational fears harboured by otherwise rational minds, - if such a generalisation might be permitted from my own particular example. Even more irksome to me was the realisation that my irrational fears were not dispelled by any application of rational thought on my part but rather by a chance random event, i.e. a ram-raid on a shoe shop. This realisation was itself quite unsettling in that it seemed to confront me with what I believed to be a different kind of irrationality, - that of the phenomenon known as chaos in which chance random events result in equally random unforeseen consequences. I am not sure however, whether my unease about my brush with chaos was well-founded. The very unpredictability of chaos has now become, I believe, the subject of a rigorous mathematical theory. One of its better known propositions concerns the so-called Butterfly Effect, which holds that a random event such as a butterfly fluttering somewhere on the edge of the world can be the determinant of a full-blown hurricane, thousands of miles away in mid-ocean. The romantic in me likes to believe that researchers into the Butterfly Effect will perhaps be able to construct a neat mathematical formula to explain how a random ram-raid on a shoe shop somewhere in Chingford, came to be the determinant of my burst of rational thought, which dispelled my phobia of thick soled trainers. The realist in me, on the other hand, tells me that such a formulation would be unlikely. I do harbour the hope however, that I might have provided mathematicians with some interesting empirical evidence, - that of my experiences with my trainers, with which to validate, or otherwise, their Chaos Theory. Perhaps my episode with the trainers had served some higher purpose after all.