- You have more than one pet named after favorite characters.
- Your wedding march was Darth Vader's theme. (It was close.)
- ...While you and your spouse were in costume.
- You spent more than $100 on your costume and had to special order some of the pieces.
- You were making up stories in your head years about your favorite TV shows before anyone ever said the word "fanfiction" to you. After you found out what it was, a lot of your life made a lot more sense.
- You are incapable of hearing, reading or speaking the word "inconceivable" without quoting "The Princess Bride." (Yes, that would in fact be inconceivable.)
- The action figures you have bought yourself as an adult outnumber the toys that survived your childhood.
- The action figures live on your desk.
- You can't help but think LEGO anything is automatically more cool.