Similarly, I once heard a story that http://en.wikipedia.org/wiki/David_(Michelangelo) http://en.wikipedia.org/wiki/David_(Michelangelo) has a bigger head than

Similarly, I once heard a story that http://en.wikipedia.org/wiki/David_(Michelangelo) http://en.wikipedia.org/wiki/David_(Michelangelo) has a bigger head than usual because people would be looking at it from a funny perspective, and foreshortening would make it look strange if the proportions were not changed.