In light of any and all events pertaining to gun violence with stolen arms or by the mentally ill/disabled, what if every living space was required to have contain a safe in it in order to be bought or sold? No, it's not well thought out, or being advocated, but just humoring it. Yes, in the scenario, you wouldn't be able to sell your home or rent your apt/condo unless it had a safe anchored to the unit somewhere. No gun registrations allowed anywhere at all for any reason. Since every living unit would have a safe, there'd be no way to tell who is an owner and who is not.
Go wild, flame, whatever.
Go wild, flame, whatever.