What if someone sold something belonging to you without your permission?

If someone sold something that belonged to me without my permission, I would first try to resolve the issue directly with that person to understand their actions and seek the return of my property. If that approach failed, I would consider taking legal action, such as filing a police report for theft or pursuing a civil claim for the return of my item and any damages incurred. It's important to document the situation and gather any evidence to support my case. Ultimately, protecting my rights and property would be my priority.