Doug,
improvement request:
"Are you sure you wish to log off?
[ ] Yeah - throw me out!
[ ] Naaw - I was just kidding!
[ ] About that - maybe just a little?
The first should be double and blind verified by entering a 27 digit code.
The second should be double and blind verified by SSN
The third should include further options, but it would involve a credit card.
Why would you log out in the first place?
Public place?