Over the years, on my daily morning walk at about 8.00am, I sometimes see the moon up high in the sky when the sun is close to the horizon and to the left of the moon. The illumination of the moon often appeared to coming downwards, at about 45deg. from the left. How can this be if the sun is to the left of the moon and to be below the moon? Like a torch illuminating a football, a perpendicular line can be drawn between the torch and the football but this does not appear to be possible with my observation of the sun and moon. Any explanations?