Why we should mind our own business:

A man was walking down the street when he heard chanting down the street. He saw no people where the noise was coming from and kept walking. As he got closer he realized that the noise was coming from behind a mental institution's walls. The crowd of people behind the wall were chanting, "Thirteen! Thirteen! Thirteen!"

Overwhelmed with curiosity the man slowed his pace and found a hole in the wall. He stepped up and put his eye to the hole to see what was going on. At the same time a stick poked him in the eye. The crowd started chanting, "Fourteen! Fourteen! Fourteen!"

And that is why we should mind our own business.