Humpty Dumpty

Humpty Dumpty sat on a wall.
Humpty Dumpty had a great fall.
All the King's horses and all the King's men
Couldn't put Humpty together again.
If Humpty Dumpty is really an egg,
As he's often been portrayed.
Then why are all the King's horses and all the King's men,
Busy putting Humpty together when
Somewhere out there is a two ton hen?