Nuns of a convent in upstate NY sold a painting to an art dealer for $450,000. The next day the art dealer sold the painting so someone else for $2.2 million. In defense of his actions, the 'sister stiffer's lawyer said, "buyer owes no duty to advise a seller that the seller should raise its price."
i.e. it's not my fault that the nuns are bad business people.