Key Question: How to lock an internally opening door from the outside. I know that I could use a security hasp (image) or I could change the doornob but I am trying to avoid these two options.
Why can't I change the door nob: Rented apartment. Door knobs have centuries of paint over them. Would probably need to touch up paint to do a good job.
What are the problems with a security hasp:
- Makes noise when you open/close the door
Background: Hiring a cleaning lady, want to prevent her from entering our offices. Offices have doors that open inwards.
Edit: Current door knob looks like this: