Thinking about emergency spare keys, which I've always had hidden somewhere in my car. With the Clarity, if the key is in the car, anyone can start the car by just pressing the Start button. Great. But what if I want to hide a spare key somewhere (say, under the car in one of those magnetic key-holder things) just in case I lose my key? Doesn't that make the car available to anyone who wants to jump in and drive it away?