1. You've read the Bücher Mehr times than Hermione has aced an exam.
2. You've learned another language just so Du didn't have to wait a few months for the book to be translated into your native tongue.
3. Du have permanently tattooed Harry Potter iconography onto your body.
4. Du have played Quidditch ... not in a video game ... in real life.
5. Du have been strumpf up with tissues for months in anticipation of the final book in the series, “Harry Potter and the Deathly Hallows.”
6. There is a room in your house that looks like it belongs in Hogwarts.