Normal boy thing and kind of an awesome interest for a nine year old.
My DS8 went through a long stage where he was fascinated by tornadoes and the total destruction they wreak based on the EF scale. It worried me a bit - like he didn't "get" that those are actual houses that people once lived in. It was the shock and awe- not anything malicious or violent. Now, he's into world 's deadliest spiders and will explain in great detail what will happen if you're unlucky enough to be bitten by one of the "top ten."
For the record, this kid is deeply compassionate and kind- cries if he sees anyone hurt or in distress.
