Voice mail left on my phone at work: "If you hear telephone wires buzzing overhead when you're outside, it's the government listening in on your thoughts. They have equipment that can infiltrate your brain." The caller then threatened to kill the President, Vice President, and Secretary of Defense.
I notified our security department and was interviewed multiple times. "No, I don't know who XXXX XXXXX is. No, I don't know how he got my number or why he called me." My name and number were on a DoD website as a contact for certain subjects so that could have been where he got it. The caller left his name and phone number so it was easy for authorities to track him down. He was already on just about every watch list in the country. They assured me I was "probably safe" from him as he was located a distance away and they didn't think he would be waiting outside the gates of our agency to kill me. Well, thanks for sharing that because it hadn't occurred to me that he might try to kill me. They did arrest him.