Engineering is Magic posted a video of a very cleverly designed wall safe that is safely camouflaged behind a working electrical outlet. All one needs is a key, the knowledge as to which outlet is the one with the safe behind it and the willingness to stick a metal object into an electrical outlet.
https://www.instagram.com/p/Bt2F07shHHk/Here’s another video featuring a similar model with more detail about how it works.
via Digg
