My daughter once sent me a video of her cat actually jumping up and opening a door. It was one of them with the handle lever instead of a knob.
I wondered why, if the cat could open the door by pushing it, the man couldn’t open the door by pulling it.
In the ‘80s, our cat would “answer” the phone when it rang — Knocked the receiver off the hook. (Never said “meow, though.) If we were gone, though, it would ring busy for hours and not go to answering machine. We had to relocate it — the phone, not the cat.
Friend had a cat that would jump up, and swing on the door handle, and kick the door frame with his hind legs, thus opening it.