A man named Calvin or Kevin Petterson making allegations that that my office clerk owes him money and if she doesn't send him a cashier check he will have her picked up by the FBI.He had everybody in my crying and scared half to death. I calmed them down and said their is no way this could be true and just as I said that he called back and I got on the phone and told to never never never never never call this # again. So far so good he has not called back. These kind of phone calls must stop people should not be in fear when they have done nothing wrong. What can be done to stop these kind of calls.