How many people have ever had scammers threaten your family?

Let me start by saying I was selling something on eBay for $800.00 (but this person sent a check for more than what I asked $2,150.50 and that wasn't what I asked.) Well, my bank confirmed that it was a scam (which I was suspicious) and they sent it back to where it came from. I told the guy that I refused to keep it and told him it was being returned (which he was one of those who wanted a pic of the check and deposit slip and my bank didn't give a deposit slip [which I believe was a good thing.) After he said I was lying about returning the money, he decided to say that my family would also pay (which was something I won't put with.) If he had threatened me, it wouldn't have bothered me; but when he mentioned my family, he got me furious. I already filed a complaint with the law; but my question is: has anyone else received this type of threat? (You and your family will pay.) One last thing was it was typed like this: "You only want to spend my fund , nothing is coming back anywhere and if you spend it , you wl also due with it , all your family WL pay for this ..." (and it was the "family" part he shouldn't have said to me.)