California

I get overwhelmed when he calls me, I have thought of just giving him refund, but I really don't want car back. Should I just let him open a case or what do you recommend?

I just sold my used car 3 days ago. The guy I sold it to called on the third day and said the check engine light turned on and that I sold him a car that has problems and accused me of lying and that he wants his money back. He threatened me with coming to my house and he did, which is scary because I don't know what…