Check out the end of this page: <a href="http://neil.fraser.name/news/2009/10/27/" rel="nofollow">http://neil.fraser.name/news/2009/10/27/</a><p>It's a great example of "Nerd Sniping": <a href="http://xkcd.com/356/" rel="nofollow">http://xkcd.com/356/</a>