A Native American paid a visit to a doctor and said "Doc, I have something that's been bothering me all my life and I need to talk to you about it. I have no nipples." The doctor said "Well, let me take a look. Hmmm, how unusual. Does anyone else in your family have this condition?" The Native American said "Yes, all of us have no nipples." The doctor was surprised, to say the least, and he said "Is that so??? Is there anything else that's strange or unusual in your family?" The Native American said "Yes, there are always only 500 people in our tribe. As soon as one is born, another immediately dies, so that the number always remains at 500." The doctor was shocked and said "What's the name of your tribe?" The Native American replied "The Indian Nippleless 500".