Feces, garbage bags, destroyed apartment, insanity.

A great story about a dude's roommate that goes insane.  I've read it years ago, but it's good enough to reread from time to time.  The first five parts are the actual story.  The next four are answers to questions.

http://www.wyseguys.com/blog/articles/shitty_roommate_1.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_2.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_3.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_4.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_5.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_6.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_7.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_8.aspx
http://www.wyseguys.com/blog/articles/shitty_roommate_9.aspx

Here's the original thread (although the above links are much better for reading):
http://forums.somethingawful.com/showthread.php?threadid=1353420