A few weeks ago, I adopted an adult miniature pinscher from a shelter. From the start, he didn't get along with my two cats, but it has been getting worse. He has never actually hurt them, but he'll chase and bark at them whenever they're around, scaring one cat and causing the other to hiss and swipe at him. The other day, she actually drew blood, and the situation has only gotten worse since then. Now, he can't even see a cat without losing it. I'm very worried about my pets' safety, and I don't know what I can do to make sure they don't hurt each other. Any advice would be greatly appreciated.