yeah, you can make a copy in 5 minutes at any hardware store and even many drug stores. it's not like having "all" the keys ensures he won't keep one, whether on purpose or by accident. i have about 4 keys to my car lying around my house, my parents have one or two at their house, my gf has one, and i'm considering giving one to my mechanic to ease early-bird drop-offs. every single one of them is a copy. i never even got an original when i bought the car.