What a way to keep your laptop safe. I have had on occasions had to go to McDonald's to hook up my laptop when my internet was out and I always had to make sure someone else was with me, just for this reason.
I will have to post the link for this as it is of course a copyright.
Rig your laptop with a blaring alarm.
It came in my email today from Komando.com, if you haven't signed up for any of Kim's daily emails-- DO-- she has so many helpful things for you.