Left a message on my VM, that I needed to call immediately and speak with a federal agent. Just for fun, I did and surprised I got a live person. The guy wanted the number that message was left at and at first I gave incorrect number. When I told real number, he was able to confirm my name and address, but still thinking it was a scam, I continued. He told me I was being sued by the IRS for tax evasion. I tried to sound concerned, but when I asked a few questions about not having any prior notice, he told me I'd be getting documents on Monday. I guess I'll be waiting out by the mailbox.