shadows of echoes of memories of songs

A colleague at my last job was so annoyed with the password change policy that he cobbled together a little command-line prog which asked for your current password, then in a tight loop set it to foo.1, foo.2, ..., foo.10 and then back to foo. Later versions were more sophisticated and inserted a delay as he came to suspect the server had begun to notice and disallow changes made faster than a human could type...