The great escape - Not

Painstaking labor 
Keeping it secret from all
He chipped away at the jails wall .
Till one day 
He thought freedom had came

- Except the tunnel emerged
In the guards rest room ....

Imagine his shock
Back in his cell block 
No escape 
Tougher walls to scrape
The prison officers won't be hoodwinked again .

- And they taunt him for his failed attempt
All he can do is suffer their contempt

- It was an embarrassing failure .