Ok, I have a friend who carries a knife to school every day. It's never been a problem, and she's had it for the past few years, and its blade is only 2 cm or so. It's one of those little knives you can get as a souvenir. However, a few days ago she threatened me with it, and even though I knew she couldn't do anything like follow through, because it was during class time in a science lab, and she would get expelled immediately, it still made me very weary. I considered talking to her about leaving it at home, but she is very attached to it and I doubt anything would come of it. The only option I could think of would be to tell a teacher, but I know that could end in a close friend being expelled. Even if she doesn't get expelled, she might never feel comfortable around me. However, I can't feel comfortable when she's proven that she CAN use the knife on a friend. I feel either option is horrible, what do you think? Also, if you know me and come across this, please don't comment... I don't want this growing out of control and showing up in my school