http://www.cs.unm.edu/~dlchao/flake/doom/
for details. Notable quotes:
A few of the problems of using Doom as a tool for system
administration: Certain processes are vital to the computer's
operation and should not be killed. For example, after I took
the screenshot of myself being attacked by csh, csh was shot
by friendly fire from behind, possibly by tcsh or xv, and my
session was abruptly terminated.
and also:
The application is very touchy and development is hindered by
guys with shotguns killing my shell windows.
-- John Klassa / Cisco Systems, Inc. / RTP, NC / USA / klassa@cisco.com / <><