Jay G links to a tale of a Massachusetts schoolteacher who feels so threatened by the weaponization potential of the basic No. 2 pencil that pupils are cautioned to leave them at home on pain of suspension.
That's right: If you need a writing stick at school, one will be provided for you, Junior Citizen.
I'm gonna go out on a limb and suggest that if pencils give you the shizzling drits, you should perhaps seek work someplace other than a schoolroom.
Just to help the more easily confused, here's a quick study guide...
Eberhard Faber Mongol Pencils:
Genghis Khan, Mongol conqueror of Asia:
The latter is the one known for causing disruptions in the classroom...