Dale had stories on his blog today of email fiascoes, and it reminded me of one I witnessed.
I worked as a substitute teacher in Evanston, Illinois a few years back. Evanston set up an email system that had settings in which a teacher or any other employee of the district could send an email to everyone in the district if they desired.
One of the teachers (whom I knew) took it upon herself to send emails to everybody in the district warning the other teachers that they should be discouraging the reading of the Harry Potter books, citing an article someone had sent her stating that the reading of Harry Potter was "sparking a rise in Satanism among nine-year-olds."
I hope she felt as foolish as she should when it was revealed that the article was a satirical piece from the humor paper The Onion
Here's an article about the hysterical (in both senses of the word) response to the article from religious zealots.