When I started getting them, I responded with, "You just sent a fraudulent email to Judge Martin's granddaughter, don't you feel foolish." My grandfather was a judge. He died before I was born. But they didn't need to know this.
They were unimpressed by judges.
So I tried telling them I was married to a gangster, a bald faced lie. That didn't work either. No luck with an invented uncle who worked for the state department. Of late, I've been trying a mythical male relation who works for interpol. I also forward them to the treasury address. I wonder what they do with them.