I adopted a long-haired tortoiseshell kitten from a local shelter today, and among some of the immediate concerns is that she has several mats of knotted hair around her neck and chin. I have a brush and she's let me brush her, and she's let me scratch her neck and chin where the mats are, but I tried to spray the mats with a special animal 'detangler' spray and she absolutely will NOT allow me to work on the mats. I thought I might cut some of them out, and she will NOT allow me to do it. She growls, hisses, scratches, bites. Clearly she is sensitive about being controlled and maybe that's why the shelter didn't deal with the mats before they sent her home with me. But I need some ideas! I can't even clip her toenails without her completely flipping out. She is sooo playful and scratches a LOT, so it's something I need to do besides the brushing. Any suggestions?