Would this be negligence? Is it a breach of duty to not look before throwing a projectile at somebody?

Back at ya, it may be negligence but is it proximate cause.

My car was hit from behind by another car and damages have not been paid for after I was promised it would be

Small claims court may be your best option.

Can I go after a campsite for my sons broken leg?

You should directly consult with local/qualified counsel. Good luck.

Got a ticket after small crash and been dismissed but stiil appear on my driving record and Uber deactivated my account

Suggest you speak with a vehicle and traffic attorney.

Do i have the right to sue carmax?

Possibly. Start by having a mechanic inspect the vehicle. Probably best to use your collision coverage.

What can I do?

You should contact qualified KY counsel. Good luck.

My car is parked outside when struck by SUV. The SUV driver is deceased. His insurance is claiming not at fault.

Your only remedy appears to be your collision coverage. Intentional acts are a proper exclusion of coverage. Perhaps CA has a crime victims fund...

Selected as the best answer

Agree with prior contributor. If you have a reason to be concerned, speak with an attorney.

Not to avoid your question, but the answer would need more facts. Points of impact, location in roadway, witnesses, etc.

Is there a reason you did not submit this "ridiculous" case to your homeowners insurance and did not retain an attorney for the court proceeding?