The caller left a threatening message to call them back.  Said their name was Officer Eric Foster and to call them back or have my attorney return the call and if I didn't they could only wish me good luck as the situation unfolded on me.  This was obviously absurd, so I returned the call out of curiosity.  The person on the other end asked for my phone number, and said he was with the IRS.  I refused to give it to him, and then he rambled on about how my wife had given him permission to call me the day before.  I then hung up on him.