There might a piece of unused information here. Does your school have a Student Handbook? You should be able to figure out what to bring or not bring to school.
ya here is what it says and I quote," The following are certain offenses, which shall result in expulsion, suspension or other severe disciplinary action:....2.
Possession and/or use of any kind of weapon, explosive (so fire tools are out) or any other dangerous material. Now I could make the argument that a Sak is not a weapon but a tool, but expulsion, I don't plan on trying it any time soon.
Jace
That Student Handbook uses fairly lazy language, anything can be a weapon in the wrong (or right) hands. How about a baseball bat or a framing hammer? Great blunt force weapons. How about a car? With the number of deaths on highways and city streets, a car could easily be considered a weapon. Does your science lab have any acid around? The only thing that makes something a weapon instead of a tool or sports equipment is intent. They can argue it's a weapon, you can argue it's a tool. Their intent will win because they have a very loose definition.
Talk to your Dad about it, maybe ask the school to define weapon and once they do, tear the definition apart. A knife is not a weapon without intent whether it's from Victorinox, Leatherman or Benchmade.