Message left on my answering machine on 8-June-2014: "Message: I need you or your retained atttorney of record to return the call. The issue at hand is extremely time-sensitive. I'm officer Kelly Gray from the Internal Revenue Service. The hotline number of my division is 202-506-8602, I repeat, that's 202-506-8602. Don't disregard this message, and do return the call before we take any legal allegation against you".
When I did a reverse lookup on the phone number, it's a landline for "Ymax Oration". The idiot who placed the call doesn't even know the correct legal terminology to threaten people with. How stupid. How obviously fraudulent.