Only one of our cats (up until we put down Elizabeth and before we adopted Aja) ever really interacted with our dog Stella, and that's Ninja. They like to play sometimes. She's a tween dachshund, so she has a lot of loose hound skin. He'll pounce on her and claw her and bite at her jugular and she just jumps around like it's a game. Occasionally she'll squeal if his claws hook her lip or something, but she enjoys it and I think he enjoys it too.