K)ill: This command is used to erase a message. The security option (Kill,
Password, Receiver, or None) determines who is authorized to remove a
message.

TIPS:
1. You are encouraged to leave messages, but also to eliminate old messages
that are no longer useful. The SYSOP will periodically purge the collection
of old messages to prevent the system from becoming cluttered.

2. Occasionally, a message will be deleted that you want retained on the
system. Such misfortune can be remedied by reentering the message using the
"E" command.  You can also ask the SYSOP to recover the message.  Just
specify what number the message had.
