(adsbygoogle = window.adsbygoogle || []).push({}); I realize the title may be slightly misleading but here's the thing:
I am in a little bit of an epic war with an "ex-friend" so to speak. He's actually a family member and don't tell me to let it go or give up.

Is there away to block his Internet connection so as to prevent him from going online? I know the name and WEP key of his connection.

Also what are other ways I could potentially do him (or his business run primarily on the Internet) harm without actually physically injuring him or property?

You could steal his passes to everything (through phishing, keylogging, etc.) and ... how do i put this... wreak havoc?

have sex with his girlfriend, and make a video of it, then post it on his facebook wall :y:

What router are you using? I'm guessing your cousin is an immigrant? No offense to anyone though.