Who’s Job is it?

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 done.

http://www.englishclub.com/grammar/pronouns-notmyjob.htm