Pre-K student brought in a knife from home, chased around another student with it, then punched him in the face, which resulted in a very bloody and bruised nose (this all happened within seconds during recess).

When I contacted the parents of the knife-child, they said, and I’m not even kidding, “What did you do to make my son bring in a knife to school and punch another kid in the face?” Then they threatened to call the Superintendent to get my teaching license revoked for wrongly accusing their child of hurting another student. Yep, good ol’ parents.