Ewe: I clip my cats so they dont scratch each others eyes out bascially..  I have them pretty much trained not to scratch the furniture and they have many scratching posts around the house that hubby made for them. But every so often one wants to dominate and will start swinging at another. This way I know there wont be major damage to any other cat. most get used to the clipping in time and just sit and patiently wait until I am done. Only the front paws and I dont clip their dew claws.  It just takes the really sharp pointy part off. You have to be careful when you clip. I have a vet teach me how so I dont clip too short. That would really hurt!