There was an old man, a boy and a donkey. They were going to town and it was decided that the boy should ride. As they went along they passed some people who thought that it was a shame for the boy to ride and the old man to walk. 

The man and boy decided that maybe the critics were right so they changed positions. Later, they passed some more people who thought that it was a real shame for that man to make such a　 small boy walk. The two decided that maybe they both should walk. 

Soon they passed some more people who thought that it was stupid to walk when they had a donkey to ride. The man and the boy decided maybe the critics were right so they decided that they both should ride. 

They soon passed other people who thought that it was a shame to put such a load on a poor little animal. The old man and the boy decided that maybe the critics were right so they decided to carry the donkey. 

As they crossed a bridge they lost their grip on the animal and it fell into the river and drowned. 

The moral of the story is...if you try to please everyone, you will eventually lose your ass.