Loving or aloof, mischievous or cuddlyfor many people, their cats are an integral part of the family. Here are extraordinary stories of some of the worlds most charismatic and captivating cats, such as Winnie, the ASPCA 2007 cat of the year, who led her family to a carbon monoxide leak or smart and adventurous Macavity, who caught a bus several times a week to the nearest fish and chips shop.