CINCINNATI-- A southwest Ohio day-care worker has been charged with assault for allegedly biting a 5-year-old boy to teach him not to bite others.

Court records show 56-year-old Robin Mullins of Cincinnati was arrested Thursday. Police say a visible bite mark was left on the boy's arm in the suburban Cincinnati day care.

Police say the boy had been brought to the office of Andrew's Friends Pre-School & Day Care for biting another child. A police report says Mullins bit the victim on the arm, leaving a mark, "to teach him a 'lesson.'"

A telephone message was left at the home of Mullins, who was freed without bail.

Another day-care worker said Friday the case is under investigation and that the day care had no comment.