Performing the trick doesn't take superhuman powers. Instead of just closing a browser window or clicking the "log off" button at the top right of the Facebook homepage, some young, privacy-concerned users are simply deactivating their Facebook accounts each time they leave the site.

Then they reactivate their accounts to log back on.

http://edition.cnn.com/2010/TECH/social.media/11/12/facebook.superlogoff...