 Most of the cases arise where one person had entrusted another with the management of their financial affairs.In "O'Sullivan v Management Agency & Music Ltd" [1985] QB 428, the musician and composer Gilbert O'Sullivan successfully set aside agreements he had entered into with his manager when he was a young aspiring musician.In "Tate v Williamson" (1886) LR 2 Ch App 55 where a young Oxford University student sold his estate to his financial adviser for half its value, the court set aside the sale.