<p>When John Timpson, chairman of the eponymous high street chain, bought his wife Alex a racehorse in 2002, a friend commented that it would be 'a marvellous way to lose money'.<br>Soon they were immersed in a world of trainers' yards, Novice Hurdles and handicaps, and well on the way to proving the old adage that the best way to make a small fortune is to start with a larger one, and buy a few racehorses.<br>As the number of horses increased an...