A trust cannot be terminated by the beneficiaries if the termination would defeat one of the settlor's material purposes in establishing the trust, even if all the beneficiaries seek its termination. Claflin v. Claflin, 20 N.E. 454 (Mass. 1889). This is known as dead hand control. A Claflin trust is often denoted as a spend thrift trust, or support trusts.