LOL!
My male Dobermann, Odin, has crushed the living room door knob with his jaws, so it’s flattened enough for him to turn it.
In the mid-80s, I was in the bedroom while my pack of rescue Dobes were out in the hall in their dog beds.
I was in bed, and suddenly, the doorknob started rattling back and forth, as though someone was about to break in in the room.
I got out of bed, sneaked to the door and quickly grabbed the knob and flung open the door...and hit myself right across the left eyebrow, full force, with the edge of the oak door.
My husband awoke to the sight of me screaming in pain, blood pouring down my face and three Dobermanns, standing there looking at me like WTF?
It turned out that Arthur was the genius who opened doors.
[although Merlin and Angus probably put him up it]
After that, I gave up trying to keep them from being with me, 24/7.
:)