Kid wanted to get back at his ex-girlfriend so he mailed baking powder to her. The result was a panic at the post office. He's in juvenile detention awaiting trial. Some kids have to learn that stuff like this isn't funny.

Just for the record, there are some stupid girls doing stuff like this, too. You just don't hear about it as often, perhaps because most teenaged girls have more sense than to do stuff like this. (Spoken as someone who raised two sons through the teen years but no daughters. I'm sure my opinion of teen girls would probably be somewhat different had I raised one.) I did read a couple weeks ago about two college girls who were arrested for pulling an anthrax scare prank, so it does happen.