>>$ ping elvis
>>elvis is alive
>>$
>
>% ping elvis
>ping: unknown host elvis
>% kill elvis
>kill: Arguments should be jobs or process id's.
>% umount elvis
>Cannot find elvis
>% mount elvis
>Don't know how to mount elvis
>% finger elvis
>Login name: elvis                       In real life: ???
>% man elvis
>No manual entry for elvis.
>% tip elvis
>Make:  Don't know how to make elvis.  Stop.
>% install elvis
>install: no destination specified
>% break elvis
>break: Too many arguments.
>% write elvis
>write: elvis not logged in
>% rm elvis
>rm: elvis nonexistent
>% sed elvis
>Unrecognized command: elvis
>% awk elvis
>awk: syntax error near line 1
>awk: bailing out near line 1
>% cc elvis
>ld:
>Can't open: elvis (No such file or directory)
>% elvis
>elvis: Command not found.
>% cat elvis
>elvis: No such file or directory
>% mail elvis
>Subject: hi
>
>Hello, elvis.
>
>Cc: 
>elvis... User unknown: No such file or directory
>% bg elvis
>No job matches pattern.
>% fg elvis
>No job matches pattern.
>% touch elvis
>%
>
>Aha! So it's ok to touch him!

some more:
  
  % assign elvis
  Unable to assign any tape unit of density elvis 

  % rlogin elvis
  unknown host: elvis
    
  common user:
  % mount elvis
  must be root to mount elvis

  % apropos elvis
  elvis: nothing apropriate