Even doorknobs can be improved upon. If a door is locked it should not be available to even try and open.
This shit is dope.
No, you may not enter my room.
This doorknob says you’re not even allowed to try.
This is awesome.
I could see this being a thing at hotels /:
instead of ‘do not disturb’ it’s more like ‘DON’T EVEN TRY’