A Worcester County, Maryland, high school student has been arrested after police say he sent feces to his Vice-Principal three times. The name of the student has not been released as he is a juvenile.

Vice Principal Mark Flynn of Stephen Decatur High School reported it to the police who contacted the U.S. postal service. A postal worker discovered two more packages addressed to Flynn and both were packed with feces.

A postal inspector was able to write down the license plate of the teen who was allegedly delivering the packages and passed the information to authorities.

The teen confessed to the crime, and told police he used dog and cow feces in the packages.

The student was charged with three counts of disturbing activities at school, and three counts of molesting a school administrator.