That's not my job

This is a 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 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 realized that EVERYBODY wouldn’t do it.
It ended up that EVERYBODY blamed
SOMEBODY when NOBODY did what ANYBODY could have.