Prison Break

I was a prison warder and it was time to go home, it had been a long day. However, I may have been a prisoner and it was the end of my sentence. Whatever, it was time to leave.
As I was about to go out of the door the lights went out. A power failure.
All the cell doors sprung open and prisoners were everywhere.
One big guy, held a knife to my throat and said he was going to kill me.
He lunged at me, folded the knife up and then handed it over.
"No hard feelings?" he said, shaking me by the hand.
I was amazed at the turn around.
Then I looked over my shoulder and saw two guards with chrome plated rifles aiming at my new found friend.
Aah well, that's the way the world works I suppose.