When the Lord made man, all the parts of the body argued over who would be boss.
The brain explained that since he controlled all the parts of the body, he should be boss. The legs argued that since they took man wherever he wanted to go, they should be boss. The stomach countered with the explanation that since he digested all the food, he should be boss. The eyes said that without them man would be helpless, so they should be boss. Then the asshole applied for the job. The other parts of the body laughed so hard at this that the asshole became mad and closed up.