Everybody, Somebody, Anybody, Nobody?

There was an important job to be done and Everybody was asked to do it. Everybody was sure Somebody would do it. Anybody could have done it, but Nobody did it. Somebody got angry about that because it was Everybody's job. Everybody thought Anybody could do it, but Nobody realised that Everybody wouldn't do it. It ended up that Everybody blamed Somebody when actually Nobody asked Anybody.

So this is a story about four people: Everybody, Somebody, Anybody & Nobody.