What's something you're oddly obsessed about? (SFW)

Cosplay and dinosaurs/prehistoric reptiles. I'm the girl that attends anime conventions in handmade, intricate costumes; then go to a fossil and gem and point out which mosasaur jaws, trilobites, and shark teeth are fake. Here's a silly collage combining the two. Dr. Sattler and 'Dog'ter Grant. That's my medical alert dog.