Jokes

A computer related practical joke a played in my younger days (2 years ago...) was to write an unstoppable program (disabled break, CTRL-C, etc...) that would imitate the login procedure. I would leave it running on a public terminal and whenever somebody tried to logon, it would always print the message 'User validation error' (Or whatever message corresponding to the operating system [that was VAX/VMS.] login error) and loop back. Meanwhile, the user ID and the password were written in a file in my directory. The only way to get out of the program was to turn off the gandalf box.