hah yes, I saw that earlier and was laughing and laughing.
I love Improv Everywhere something fierce.
From IE's blog:
"Agent Rodgers was the first ghost to enter. He grabbed a book off of a shelf on the way in and started heading for a seat. He was quickly stopped by a security guard, who had no idea what was going on.
Guard: Sir, what are you doing?
Rodgers: Um... haunting the library."
Hehehehe.