A Story Of Four People

There is a story about four people named Somebody, Everybody, Anybody and Nobody.
There was one important job to be done.
Everybody was sure that Somebody would do it but Nobody did it.
Somebody got angry because it was Everybodys Job.
Everybody thought Anybody could do it.
Nobody realised that Everybody wouldn’t do it.
It ended up that Everybody blamed Somebody when Nobody did what Anybody could have done