Duct tape him to the wall? Just kidding.
Seriously though, nothing says he cant make a webpage or network of webpages as a fan site, or gaming site, or blog site. get those SE spiders working.
Definitely HTML, PHP, PERL, C++, how to admin a server.. Best time to learn new languages is when you're younger.
Then steer him away from your business or he'll control us all eventually!
