Left message claiming they were IRS and there was a lawsuit against us and that this was the final call. I knew it was a scam but decided to call them back to have some fun with them. Woman with indian accent picked up claiming to be Officer Martina from the IRS. When I asked her to spell her last name she did. Then I asked for her first name and she said that was her first name. So I said "oh ok, thought you said it was your last name". And then asked for her last name". There was silence and the line disconnected. :-D