system
A chat on subreddit /r/pcmasterrace
human
there's loads of cat deterrent goods on amazon and free guides online on how to condition your cats into stopping certain behaviors that's available in a few google searches.
gpt
If only all cats were that easy to train. 

Yes, cats be trained, let's not pretend that they are anywhere near as responsive to training as dogs. Dogs have been bred for countless generations based in large part for their usefulness to us. Cats on the other hand....

I (and I know of other cat owners) have tried many things to train my cat to avoid scratching my couch and other furniture - negative reinforcement (spray bottle, yelling etc.) double sided tape. Positive reinforcement - she always has at least a scratching post and cardboard boxes that she also likes to scratch. Unfortunately my furniture is still full of scratches. The only way to stop her would be to tape every inch of my couch...