Disclaimer - I AM a teacher and I deeply admire elementary and secondary teachers for surviving the day. But this one threw me for a loop. So I challenge you teachers out there Justify this maneuver! Freshman in High School, AP kid, honors everything, boy scout altar boy (no I'm not making that up he really is) AP Calculus teacher says you may bring in a pencil and a blank sheet of paper to the exam. Kids stow their gear, as he gets ready to walk in he realizes his pencil barely has any eraser so he grabs an eraser, standard school type we all carried. Teacher stops him at the door and says he cannot take the test, he is sent to the principle's office for "bringing an inappropriate item into an exam." His mother is called and told to come get him he has just failed his calculus mid term..... I always try to give the teacher the benefit of the doubt. SO, what good reason could there possibly be for this?