when u have a cat in ur hand and it starting to be angry/scratchi find a place in back of her/his neck and hold the cat only in that place with your fingertips , by the way the skin on the cats back is kinda...something like a buble gum so take the skin with 2/3 of your fingers and hold the cat in the air only with you 2/3 fingers and only on that place...believe me the cat wont give you a scratch...maximum what she can do is to touch you with her hand (or whatever cats use) and she will be like paralized or something bring her to some cage thingy and wait for her calm down that should work