You can go to any extreme, any precaution and you could still have your PMs stolen. How do you know that someone didn't tail you going to or from a vault or a dealer or that last f2f deal you did wasn't a thief that will have you followed to your home? Hold your family or pet budgie hostage until you go and retrieve all your PMs. A dummy safe is no smarter or dumber precaution, it's just a stacker investing in false self-assurance.