The ultimate friendship test isn't sharing Netflix passwords—it's writing a book dedication in hexadecimal that translates to something wildly inappropriate.
For the uninitiated, those innocent-looking hex numbers at the bottom actually decode to a message that's... let's just say not about the book's content. It's the digital equivalent of slipping a dirty note into someone's locker, except you need to be smart enough to decode it.
This is friendship in the programmer era—where the best inside jokes require a hex converter and a complete absence of supervision from HR.