Where do you store your cold wallet? A safe in your house? Also, where do you store your backup recovery phrase? Seems risky to store them both in the same place right? Fire could take both out.
There is no 100% reliable and meaningful way that would be able to protect your crypto related stuff from any possible threat. Methods that would protect them in certain circumstances may fail in others. You wanna example? OK, $5 wrench will crack all, unless you sacrifice your life. So I would suggest not to sweat on this and take ordinary precautious you used to.