This is along the same theory as picking a standard lock. With the right equipment you have no idea how easy it is to open up a standard house lock. My friends had a lock pick kit and you could pop open a keyed master lock in a minute. Sure you house has 7 or so cylinders but still. The key to the whole thing is to twist the lock a little then to start setting the heights of each pin. I woudl actually think you would need two pens to do it or do put your fingers on part or something. Lock picking not as easy as TV not as hard as you would hope.