In case of emergency, learn how to open a combination lock using a bobby pin by following the steps in this tutorial. Take the bobby pin and shave it down so that it is flat. This can be used on any combination lock. What you will do, is take the bobby pin and insert it through the side of the lock (the part where the lock goes). Keep pressing it down, pushing against the lock inside the hole. You are basically pushing it out of the way and eventually the lock will unlock. You will hear a click and then the lock will pop out.