"I opened my mailbox to find this weird and completely terrifying note. It definitely seems like the person writing this was writing with their other hand to not get recognized, and this is what scares me so much. I don't know anyone who could do this, and I haven't noticed anything strange recently. I did call my close friends, and they all advised me to go to the police, which I'm planning on doing as soon as I can, but I'm not sure what they can do. One thing for sure is that I'm not sleeping tonight. Do you think I'm overreacting?"