i got a jar from asda with non metallic lid and i put all my laminated offline wallets from doge to btc in it and buried it 12 ft deep reinforcede concrete box in my garden with a digger and cemont mixer i hired
me money is now safe i can rest in piece from house fires to burgorlers i will be a millionaire in the future oll i hath to do is just wait for the idiot brainwishwash sheeple to catch on.
They know where you've put something.

Actually this is quite a good idea. Although I would never bury it in my own yard of course. There was a simpler solution though, remove part of your wall. Then place your box (should be small) and fix it up. Make it look like brand new. I doubt that someone would go around smashing your walls anytime soon.