There is an old joke about all of the body parts having a meeting to decide which one was the most important and should therefore be the boss.*
The Brain said, "I should be the boss because I run the body's systems. Without me nothing would happen."
The Blood declared, "I should be the boss because I circulate oxygen and nutrients all over the body. Without me you'd waste away."
The Stomach said, "I should be the boss because I process food that gives all of you energy."
The Legs said, "I should be the boss because I carry the body wherever it needs to go."
The Eyes said, "I should be the boss because I allow the body to see where it goes."
Hearing all of this the Colon protested, "I am the boss because I’m responsible for waste removal."
All the other body parts laughed at the Colon and insulted him. So in a huff, he went on strike and refused to work.
Within a few days, the brain had a terrible headache, the stomach was bloated, the legs got wobbly, the eyes got blurry, and the blood was toxic.
All the body parts conceded. The Colon really was the boss!
*This story was cleaned up for the purposes of this blog