"SpANG" Said:

There's a simpler way to do the same thing. Viewing source code is not needed. Just hover over the "RSS" of the comic to get the comic account number (it will display in the status area at the bottom of your page. The grey area that usually reads "Done" ). It would look like this:

http://www.drunkduck.com/rss/rss.php?cid=423

423, in this case is the comic account number.

Then just paste it into the URL that mapaghimagsik gave everyone:

http://www.drunkduck.com/xmlhttp/removeFav.php?fav=###

To....

http://www.drunkduck.com/xmlhttp/removeFav.php?fav=423