Anne Arundel County police say a school resource officer at North County High School responded for an assault Monday. A juvenile said that as he was washing his hands in a restroom a suspect dropped a vape pen. The suspect told the victim to pick up the pen. The victim refused and the suspect pulled a knife and placed it on the victim causing a minor injury. The victim picked up the vape and the pair left the restroom. The school nurse treated the injury. The suspect was charged for the assault.