i think he is talking about a safebox in his house, he can control it easily if he know the combination
That's a horrible idea, what if your house is broken into and someone grabs your lockbox? you pry those things open in seconds with a crowbar
I honestly believe my methods are the safest possible:
For my hot wallet I use my Trezor, for cold I use paper wallets and store them in a safe deposit box (
insured! 
)
I also keep my
recovery card in my safe deposit box
safe deposit box can be broken as well it's not they are immune to thieves, the big thing to have when you hold plenty of money isn't the security of it but the awareness of the people about it, in other word don't tell to anyone that you're holdin a big amount and you're safe
It doesn't matter if my safe deposit box is robbed, that's what the insurance policy is for. I make a claim and get my money back. It's much safer to keep your paper wallets at a bank versus hiding them somewhere inside your house.
you really cant be sure if you're running a good version or a hacked version of the paper wallet generator code.
There's multiple projects on GitHub. Compile on an air gapped computer and you're completely safe.
What happened to the original metallic looking cases for Trezor wallets?
There's a silver metallic version in a pic that keeps floating around...
Only the people who preordered got the aluminum trezors, it was a rip off imo they cost 1 BTC each