They will likely get a judgment against you..........................

Renting car rims may be the stupidest idea I have ever heard of. If he refuses to return them, they can call the cops on him.

I assume you have custody/guardianship over him. Retain counsel before you do anything. His story about "accidentally" taking the box cutters to...

He can sue you for the return of the ring and will likely win.

Entirely up to you. But one makes the most sense.

Are you asking for samples? There are on line sites that have samples.

Has Valvoline said they won't repair it? If so, hire an attorney to file suit.

Reach out to your local congressional rep.

If you called me and used a fake name, and then said "now I need to tell you who I am" I would tell you to take your case elsewhere.

None of us knows how long it will take his command to process the paperwork.