ROCK HILL — A Rock Hill High School teacher received a threatening letter Friday from an upset parent who said she would eat the teacher’s face if her daughter wasn’t allowed to use the restroom, deputies say.

Deputies spoke with the teacher, 48, who said one of her students handed her a letter. The letter, written by the student’s 47-year-old mother, read: “When she needs to go the bathroom — YOU WILL LET HER GO! If she is not allowed to go, I will come to RHHS and eat your face off.”

The incident wasn’t reported until Monday. No arrests have been made.