[michaelt]

I once volunteered at a hospital where they made use of a smart card security system - among other things, it would log you out if you removed your card from the reader. This closed all the programs you were running - and logging back in was a slow process.

Needless to say, the smart cards stayed in the users' PCs even when they weren't at their desks.

[snuxoll]

That's disappointing, Windows has multiple options to handle a smart card's removal, one of which is simply locking the screen, sad they decided to use the "force log off" setting instead.