Two brothers sold what they had to go off to California to mine gold. After a while, they came upon a vein of gold that surely would bring riches once they fully excavated it.  After digging in the spot, to the brothers' shock, the vein of gold was not there!  Exasperated and sensing a sure mistake, the brothers sold the land and headed back home.  The new owner then instructed his miners to begin digging again where the brothers had started.  Just two more feet down, the miners str...