What is an obscure Anime fact that throws off a lot of people?

Examples:Great Teacher Onizuko: Onizuko teaches middle schoolers, not highschoolers. Many people skipped this fact.Lovely Complex: The protagonist is 172cm tall, the average height of a woman in the world is 171cm. But the animators sometimes made her look as tall as LeBron. http://ift.tt/1ZHcbj0