On Wednesday, April 11, 2001, a benign message from an administrator to a list of MIT credit card holders blossomed into a torrent of "please remove me from this list" messages, as well as countless fruitless pleas to "stop spamming the list", which only led to more "please remove me" messages, which eventually led to flame wars, etc.
The amazing thing is that all these people are from MIT, yet clearly haven't the faintest idea how mailing lists operate, nor any notion of "netiquette". It made me stop and reassess my view of the state of the technological world.
An annotated log is here (Postscript) or here (MS Word).
The actual emails, with useless headers and citations of previous messages removed, are here.