not arguing with you but what specifically does shutting down do for you in that situation that sleep wouldn't?
I am not 100% sure (or better said... I cannot remember), but when I researched it, I learned two things. In addition to using FV2 (which I was already doing)... I should add a firmware password and do a shutdown when left unattended. BTW: This is not 100% perfect either.
I do not shut down at work or at home... but when left unattended (especially in hotel rooms), I do it religiously.
If the laptop is stollen, losing the device is an inconvenience. I am not particularly worried about losing data... since everything is double backed up. However, losing my identity would be catastrophic.
Shutting down in situations like this is trivial... so I do it.
/Jim