I have to say that this is like the coolest thing!!! It's really funny like to call people and make it pretend like it's a message from the public library saying that they have a book that's overdue or something. Better yet, how about a call from a adult shop asking about an overdue porno. This could really get some people all worried.
Then I was thinking about making it sound like the devil. "This is a message from Lucifer. The time has come for you to come home my child. I have a place reserved in hell just for you. Come join me."
Then how about like star wars crap. "This is a message from Darth Vader. Luke, I am your father!"
Ohh imagine all the fun you can have with this site!!