Years ago before the troubles began in N.I., this bloke my father new used to go to jail for one week a year rather than pay maintenance to his wife.
Back then security was very lax , because this bloke was only doing a week in the jail ,the screws would let him do odd jobs around the jail.
On the Saturday before his release,some of the screws sent him to the bookies down the road from the jail to put money on a horse they fancied, the screw who let him out the front gate was supposed to let him back in again when he got back from the bookies.
The bloke went to bookies and placed the bets ,he then decided to get a couple of pints of Guiness before going back to jail.
In the meantime the guard who was supposed to let him back into jail was called away ,the guard who replaced him didn't know what was going on.
When the bloke got back from the pub and banged on the prison gate to back in , the new guard told him to go away as visiting hours were over, the guard didn't believe him when he said he was actually a prisoner.
The bloke didn't want cause a fuss as he knew something was wrong.
So he said ,OK, if anyone is looking for me I am in the pub beside the bookies.
He went back to the pub, the guard then reported to the other guards what had happened at the gate.
The other screws then waited until the new guard went off duty and then they phoned the pub , by this time the bloke was steaming and had to be brought back to the jail in a taxi.
Needless to say the next time the bloke came back to do his week inside he wasn't allowed out.