Gas pipes were being laid across remote parts of Ireland. A couple of Irish lads were digging trenches for pipes near a farmers house. He asked what they were up to, and to cut a long story short, they agreed to run a pipe line to his house, on the payment of £500, so that he could get free gas for life.
The farmer jumped at it. And for 6 months after the lads left, sure enough he got free gas.
But then, his gas ran out. He couldn't complain to the gas board, because what he had done was illegal.
It transpired that the lads had buried a large tank of Calour Gas in his garden, then connected him up!
(as told to me by an Irish friend. True or not, worth the telling)