Related:

• undocumented feature n. See feature.
• Quaxity quuxity, Teitelman's InterLISP Has a DWIM feature that's Really a screw
  MacLISP has evident Superiority, Letting its customer Mean what he do....
• There are some really dumb folks around. There was this guy that caught a terrible cold, sitting in his car, waiting for the ticket booth to open at the Drive-In Theater.
  The feature, on the board "Opening in the Spring....
• Windows 95 undocumented "feature
• Feature not yet implemented
• Feature was not beta tested
• Add a feature... Add a bug...
• Aha! Another "Undocumented Feature"!
• Is it a known (mis-)feature?