Ha! I had a rescue “mutt” cat, Jethro, that was fascinated with the light switch.
And he “got” the phone. When it rang, he would jump on the counter and knock the receiver off the hook. Then “meow!” It caused some problems if we weren’t home. We’d return and saw the receiver off the hook, and had no idea how long it had been that way.
Too funny! Snoogie was fascinated with various office supplies on my wife’s desk here in the home. Whenever she would sit there and try to do anything, he would always jump up there and try to help. Pushing her the stapler, or pushing her the scissors, or grabbing a pen in his mouth and just holding it there. But I never once saw him up there by himself, he just wanted to help her so bad he couldn’t stand it. I think a lot of cats just respond to the love they receive, your example of the rescue cat Jethro being a perfect example.