Stress A cat is strong & proper just look at its legs long and strong fast and enduring even when at rest they are readied
yet the cat was not built to be perfect most cats would like to eat properly (trust me on this I've interviewed enough of them) with a knife and fork but they just can't seem to get a grip on those utensils, even with fine claws it just won't happen no matter how hard the try
so when they get FRUSTRATED and claw the crap out of the furniture try to understand that they are a stressed species and need special understanding