As I stepped up to the library exit, the stolen-book alarm sounded.
I stepped back from the door and waited for some nice librarian to wave to me, to tell me to open up my backpack.
But no nice librarian waved to me. After a few seconds, I stepped up to the exit again, setting off the alarm again.
I stepped outside.
I had just checked out Kevin Mitnick's Art of Deception, a book about cracking security systems.
I kept walking, thinking, M_____ D_________, "master hacker," rides again! I just totally evaded that alarm. That was kind of funny.
Then I thought, No, they let me go. That alarm just told the FBI to commence tracking. That was less funny.