Privacy door knobs have a push lock or twist lock on the inside of the room.
Open lock on door.
Ever locked yourself out and have no way of getting in.
If the locking mechanism is a latchbolt the kind of bolt that is spring loaded and has one angled edge and the angled edge is facing away from you you can hook it with a wire hanger.
Angle the card towards the frame.
If you usually carry around paperclips in your school backpack or your work bag then you re fully covered.
In cases of accidental locking these unlock from outside of the room using a coin or stiff push pin.
You have to manipulate the clip into the ideal shape that you need in order to open the lock.
Here is another life hack for you.
Then swipe quickly downward.
With many older doors you need to pressure the door as you fiddle with the key as the warped door is bending the lock at an awkward angle.
If you have two paper clips on you the process will be that much easier.
Then just turn and twist until the screwdriver catches on a groove and the lock clicks open.
Designed for interior doors such as bathroom and bedroom doors.