Wiltw's photos above are fine examples of why final cropping in the camera's viewfinder is an artificial limitation imposed upon the creative photographer. We may have a specific use in mind for every photo we capture at the moment of clicking the shutter, but we should also consider the possibility of future situations where different cropping is more appropriate or even necessary. Of course we have laws to protect us from the stupidity and cupidity of others. Such laws are essential in a rational society, and should routinely be obeyed. However, the traditions and rules of photography have evolved more to make us efficient, not to prevent us from becoming better photographers. Testing these boundaries has often led to significant advances in the art and technique of photography. Blind adherence to inflexible guidelines is a terrible strait-jacket to inflict upon creative people!