Okay so, I was working as an apprentice in a security field. Boss gave me some manuals for it, really outdated manuals from the 90's, and told me to keep them until he asked for them back. About 8 months after I started working with him, we had an argument and he fired me. I left the manuals on his porch at his house, and left it at that. Now 6 months later, he's threatening to sue me for $1,500 if I don't return them to him immediately, which obviously I can't do because I don't fucking have them anymore.
I never documented returning them so I have no proof that I did so, while he has proof he did give them to me.
What can I do? I have the names of the manuals and companies that printed them written down but can't find any pricing for the manuals nor any contact information for the companies in question and am assuming they're most likely out of business given the 30 year gap.
I'm planning on contacting a lawyer in the coming days. I haven't been served yet.