Refers to the pledging by the debtor of his/her personal services or labor or those of a person under his/her control as security or payment for a debt, when the length and nature of services is not clearly defined or when the value of the services as reasonably assessed is not applied toward the liquidation of the debt. (R.A. 9208, also known as the “Anti-Trafficking in Persons Act of 2003,” Sec. 3[g])