Freeborn Romans who fell into slavery were supposed to be protected from sexual exploitation, as indicated by two different stories recorded by ancient historians. Before the abolition of debt bondage in the 4th century BC, free Romans were sometimes driven to sell themselves or their children into slavery when they were overwhelmed by debt. According to Livy, debt slavery ("nexum") was abolished as a direct result of the attempted sexual abuse of a freeborn youth who served as surety for his father's debt with the usurer Lucius Papirius. The boy, Gaius Publilius, was notably beautiful, and Papirius insisted that as a bond slave he was required to provide sexual services. When Publilius refused, Papirius had him stripped and whipped. The youth then took to the streets to display his injuries, and an outcry among the people led the consuls to convene the senate. The political process eventually led to the "Lex Poetelia Papiria", which prohibited holding debtors in bondage for their debt and required instead that the debtor's property be used as collateral. The law thus established that the integrity of a Roman citizen's body was fundamental to the concept of "libertas", political liberty, in contrast to the uses to which a slave's body was subject. In this and a similar incident reported by Valerius Maximus, corporal punishment and sexual abuse are seen as similar violations of the citizen's freedom from physical compulsion, in contrast to the slave's physical vulnerability.