everybody, somebody, anybody, and nobody

Once upon a time
There were four men named
Everybody, Somebody, Anybody, and Nobody.
There was an important job to be done
And Everybody was asked to do it.
But Everybody was sure that Somebody would do it.
Anybody could have done it.
But Nobody did it.
Somebody got angry about it
Because it was Everybody’s job.
Everybody thought that Anybody could do it
And Nobody realized that Everybody wouldn’t do it.
It ended up that Everybody blamed Somebody
And Nobody did the job
That Anybody could have done in the first place. (Author unknown)