The most important is to be an asshole

Every part of the body thinks itself the most important, and all of them want to be the boss of the body.

The brain says " I think I'm the most important, I have to think a lot, I should be the boss!"

The legs say " We are the most important, every day we have to walk a lot. So, it would be nice when we are the bosses!"

The heart says " The most important part is me, when I stop working, the body will die..."
... ...

At the end, the asshole says " Why don't you all shut up and listen to me! The boss here can be only me, me, me!!!" Everyone who has heard this lauchs at the asshole " Are you kidding? Show us what you are capable of!"

Then, the asshole stops shitting and farting. There's such a lot of shit and fart inside the body, and every part feels so sick... At the end, everyone says to the asshole " You win, you are our boss now!"

The ass is very happy " So, now you all know it, the most important thing to be a boss is to be an asshole!"