try walking in on me now.

People can pick locks and cut locks and everything else.

THIS might be one of the most fail proof ways in history of
keep people out of your privacy zone.

Eliminating the door nob.


This is a sweet indicator that someone is CLEARLY in the room
as you have to pull the knob from the other side to begin with
.
Forget that "Do Not Disturb" sign or 'sock on the door'.
Shut off that little voice babbling "What if" when
your mind is busy with something else
;)