A few years back I lost my keys while crossing a street. My luck being what it was, they were driven over! Not once, but 5 times, it was a long line of cars.

While keys are made of metal, it is very brittal, I ended up using my spare keys that I keep in my wallet to get home and in. Luckily I had a truck at that time that didn't use the chipped keys so I could cut off the plastic.

If you have a car that uses a chipped key, the trick I like to use is to have a spare chipped key hidden. One idea is to zip tied under the passenger seat somewhere. and keep a cheap normal key that will work the door locks to get you into the car.

It is cheaper to have the chipped key made once, than to have someone technician come out and program based off your VIN number or something.