Neither will explaining that your laptop is useless to a thief. If someone is going to shoot you over a laptop, they're going to shoot you over a laptop. Obviously it's not worth killing someone for a $3k laptop though (any more than you see someone shot over a Honda Civic), so they won't. Otherwise we'd all be wearing body armor when we write a thesis in Starbucks... which (unless you're American) is a distant fantasy.