Default G2 post-call lock/security hole...

Hello all,

New (T-Mobile US stock ROM) G2 user here, coming from a multitude of previous Android devices (most recently a GS3). Anyway, I've noticed that there's a potential security issue while using the phone...

I've noticed that when you end a call (at least one the I've originated), that I can easily navigate to the home screen and beyond. The Samsung GS3 sends you back to your security screen once you press end. This would be a problem if you're 'Apple picked' mid call, where the thief could potentially operate the phone if it's grabbed out of someone's hand while they're mid-call.

Is there a setting that I'm missing, or did LG miss this one?