A ridiculous story about a post office in the US that was shut down and visited by agents in hazmat suits, just because a woman reported receiving a letter from India.
I loved this comment in the ensuing Fark discussion thread:
Shortly after 9/11 I filed a police report for a guy who found a "suspicious white powder" in a textbook sent to him by the publisher. As it turns out the "suspicious white powder" is something commonly known as printer's dust. It's harmless.
I'm not sure why this guy thought McGraw-Hill was trying to kill him, but seeing as he works in the Math Department I'm sure he has plenty of enemies.