settlor's approval in trust instrument (settlor authorizes breaching conduct such as in an exculpatory clause) prior approval or ratificatin by beneficiary court decree statute of limitations - if matter revelaed in accounting the beneficiary must bring suit within three years; else is 3 years from time beneficiary discovered or should have discovered breach laches revocable trust - if settlor not complaining beneficiaries cannot sue can beg the court to relieve the trustee of liability