When my yorkies were iny I was petrified that my cat would mistake them for a rat and try to kill them so I kept her away from them and intrduced them very slowly. I used to panic when I would see her crouching like she was ready to attack. In hindsight I think she just wanted to play and now they are the best of freinds and her claws rarely come out at all. When they greeted here upon our return from vacation it was the cutest reunion!! Thry jumped all over her!! They had missed her.....