Dad Got Restraining Order Against 4th-Grader who Threatened his Son with a Knife

Robert Casteel, the dad of fourth-grader at a Riverside elementary school, decided to take out a restraining order against one of his 10-year-old son's classmates after the boy pulled out a knife and told his son that he was going to hurt him after school, reports KTLA.
It seems like something that school administrators would be quick to try to rectify, but when Casteel called the school to discuss the incident, he was told that the principal was on a conference call.
Casteel then called the police, who found a pocket knife on the boy. Casteel kept his son out of school for five days until he was able to get a restraining order, which will require the boy with the knife to stay 20 feet away from his son.
In the meantime, maybe that school wants to rethink it's strategy for determining priorities.