This is happening to me right now. The "buyer" contacted me and said he wanted the item I was selling and said he would arrange for shipping. I got the text today that the check was sent and he supplied a tracking number. the total for the check was more than double what he was to give me for the item. I was to keep my portion and the rest was to go to the shipper. I felt something was fishy with the way he was persistent In buying the item and didn't even try to make a lower offer than what I was asking. I am glad I read this forum to know for sure.