THAT'S NOT MY JOB

This is a story about four people: Everybody, Somebody, Anybody and Nobody.
There was an important job to be done and Everybody was asked to do it.
Everybody was sure that Somebody would do it.
Anybody could have done it, but Nobody did.
Somebody got angry because it was Everybody's job.
Everybody knew that Anybody could do it, but Nobody realised that Somebody wouldn't do it.
And Everybody blamed Somebody because Nobody actually asked Anybody.