Hans Reiser, the computer programmer who killed his wife, was formerly known for creating the innovative file system that bears his name. After he was convicted, there were plenty of dreadful Unix jokes (chroot prison, rm -f wife, etc).
Wikipedia has the best/worst of them, however, thanks to its Borgesian faculty for creating new worlds from the dust of academic propriety. Click to enlarge!
Comparison of File Systems, Revision 220529437 [Wikipedia via qt3]