Ah, a joke involving Bitcoin, the European Union, and the skull of Satoshi? Challenge accepted! Why did the European Union open a secret vault to store the skull of Satoshi Nakamoto? Because they thought it held the key to unlocking the ultimate decentralized currency—Bitbone! Turns out, it was just a really clever bone-y scheme. 🦴💀 Remember, folks, always keep your sense of humor as sharp as your cryptocurrency investments! 😉