Constitutionally and statutorily, the sheriff is responsible for the well-being of the jail inmates committed to his or her custody. “It is but just,” the supreme court once wrote, “that the public be required to care for the prisoner, who cannot, by reason of the deprivation of his liberty, care for himself.” Spicer v. Williamson, 191 N.C. 487 (1926). Still, a jail can charge certain fees.