It is so difficult to clip Bella's nails. It's getting the point where I can't even do it myself anymore. She is terrified of the clippers. She is totally uncontrollable when I bring the clippers out. She runs, growls, snaps, and bites. Does anybody have any tips to help me with this problem? She bit my brother today, and I don't want to have to take her to the vet where they'll put a muzzle on her whenever her nails need clipping.