Your Four Busy Bodies

This is the story about four people, named Everybody, Somebody, Anybody and Nobody. 
There was an important job to be done and Everybody was sure that Somebody would do it. 
Anybody could've done it, but Nobody did. 
Somebody got angry about this, because it was Everybody's job. 
Everybody thought Anybody could do it, but Nobody realized that Everybody wouldn't do it.

It ended up that Everybody blamed Somebody when Nobody did what Anybody could have done!