I have a problem with my 3 year old calico, Callie-sue. She is and always has been a biter, and I don't mean little love nibbles either. She bites as hard as she can and will clench her jaw until I grab the loose skin at the back of her neck. That makes her let go but she'll scowl at me hatefully afterward. My arms and hands have been bitten so many times that I scarcely even feel it anymore, but that's not my issue. What I want to know is what can I try to get her to stop doing this, or at least to tone it down a bit? A little more information: She doesn't always bite this hard out of anger. She's a roughneck kind of cat and loves to play rough, so she will start out biting just a little but it always grows into full out bone crunching chomping. I have done so much research on this topic, to no avail. One cat site suggested I growl at her when she bites too hard as that is what other cats would do. That worked for about two bites and then she considered it part of the game. Another site said to just ignore her and not play with her anymore, but that just makes her lunge for my hands as they are the target for her. Suffice it to say, I have followed all the advice I've found and nothing has cured this problem. Do any of you have a better suggestion that could give me some relief from my favorite cat's favorite hobby: biting?