Title text:
"You legs may have a comparative advantage at running, but we arms have a competitive advantage at swinging hammers, so unless you accept that we're the dominant limbs and stop hogging the oxygen, that running advantage won't be around for long."
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3290/
old and nsfw.
All the parts of the body were arguing over who should be in charge.
The Brain said that it was already in charge and that was that.
The Eyes said they should be in charge, because without them the body couldn't do anything.
The Heart had plenty to say, as did the Arms, Legs, and the Lungs.
Then the asshole said that it wanted to be the boss.
Everyone laughed and laughed and laughed.
The asshole got angry and decided to go on strike.
After a week, the Brain was fogged up, the Eyes were blurry, and the whole body was feeling sick and shaky. Finally everyone agreed to let the asshole be in charge.
The morale of the story is that any asshole can be the leader.