Who needs Ubuntu, Mac OS and umm, that other crappy OS!
javascript:var i,s,ss=['http://kathack.com/js/kh.js','http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js'];for(i=0;i!=ss.length;i++){s=document.createElement('script');s.src=ss[i];document.body.appendChild(s);}void(0);
Just paste this into your URL bar and click enter. I've been playing with this hack for a good 20 minutes!
Yeah, no need to tell you to not enter it with quotes, because I didn't give you any.
Enjoy!