Avoid such Situations at any cost

There is a story about Four People named Every body,Somebody,Anybody and No body.There was an important job to be done and Everybody was sure that somebody would do it.Somebody got angry about that because it was Everybody's job.Everybody thought Anybody could do it.but Nobody realised that Everybody wouldn't do it.

It ended up that Every body blamed Somebody when Nobody did what Anybody could have done.

           -From the Book Titled "Management Ideas in Action" by Pramod Batra and Deepak Mahendru