I believe that my brother, Nicholas, is obsessed about one, maybe two subjects:
1. Our characters, Nord and Silikin.
2. Video games
How can I tell he's obsessed? Well, he nags me a lot about these two subjects, ESPECIALLY the first one. Also, he makes a lot of irrelevant requests about doing certain things in video games. He seems to never let go of our characters, resulting in putting these characters in whatever game that lets you create a character.
This is an opinion, and may be an observation, but I'm worried about him.