[theatraine]

How the device fits over the lock handle reminds me of another device I made to unlock a door. I had to get into a room to reset a router, however the lock was a deadbolt, and I didn't know how to pick it. Using a (heavily bent) coat hanger, I squeezed it through a crack in the top of the door, lowered it with twine until it grasped the lock handle, and then turned the device with some more twine (from under the door) and I was in.

Locks that open when the door handle (not a knob) is turned can also be opened relatively easily with coathangers from under the door. Make sure to consider all aspects when making secure systems!