The End Is Near (Just Kidding)
When a hospital's data-security team added a time-out function to its online system so patients and visitors wouldn't be privy to sensitive data, they set the on-screen message to read "Session signed off due to terminal inactivity." But that poor choice of words sent even the most seasoned medical professionals into anaphylactic shock.
The security folks quickly changed the message to "Terminal session signed off due to inactivity."
Thanks to Sue Siefert for this submission
Stupid Human Tricks
For those who never thought the telephone and computer networks would meet, there is this undocumented Google.com feature
1. Within quotes, type your phone number (use dashes, not periods) and hit Enter.
2. On the resulting page, select your mapping tool of choice.
3. Presto, you know where you live ... and so will everyone else who knows your phone number.
The privacy issues at play here are beyond the scope of this modest page. However, we have discovered a practical and ethical use for this feature. Simply Google any new phone numbers before you agree to them. At least you'll know if your shiny new mobile phone number previously belonged to the local Burger King.
Thanks to David Weinberger of Cluetrain Manifesto fame for pointing this out.