This is what you need to do.
And I am serious.
*Get a hold of the Students (Rights/Responsibilities) Handbook. Study it, get to know it better than any administrator.
*Make sure the Principal will be in the office on Monday.
*Take off work on Monday.
*Your DH needs to do the same.
*Take your DS to school.
*The two of you must then go to the office together, you have to have your husband there.
*Tell the receptionist/administrative aide that you are there to see the Principal.
*Wait. to. see. him/her. As long as it takes.
Then?... calmly ask the Principal where the Handbook states that a Harry Potter Wand is a weapon and a ruler or a pencil or a piece of chalk or a big Magic Marker is NOT.
*Make sure this 'black mark' is removed from his record...yeah, I guess it might not follow him to the upper grades, but it's a WEAPON... and we've already established that common sense has been thrown out the window, so don't assume anything.
*After the meeting, write-up an e-mail detailing what occurred and make sure to send it to the Principal (AND to CC their Supervisor).
*Make sure to update this thread...we'll be waiting.
The most important thing is that your son understands that he did absolutely nothing wrong and that you & your DH will always have his back.
Good luck in whatever you decide to do.
agnes!