Out of curiosity, do you have a normal door lock on your door; one that uses the kind of key you can get a copy made of at home depot? If so, pretty much anyone can open it with a bump key and a couple seconds.

You can see it in action here (https://www.youtube.com/watch?v=w0CIlwSxsvU). His first try takes a bit longer than it should because he's turning too hard (simple mistake). Every attempt after that takes just a couple seconds.