Enter our puppy, Pearl. Pearl is unpredictable, and if Seph hates anything, its unpredictability. Change is not acceptable and loud noises are cause for shunning. Pearl whines and barks much more than Kita ever did, and Seph could not make his disdain more clear to us. He will stare at her while she barks with a look of pure hatred. If she is energetic, he runs from the room and will run around crying until she is done. He, of course, hates when Pearl jumps on Chris's lap, so he will sit in a place where she can't reach him and will stare at her some more. In the mornings, I drink coffee before I feed Pearl and let her out, and Seph has learned that if he sits on my lap while I drink my coffee, Pearl will have to stay in her "house" longer. He now schedules his own naps for when she is out playing.
I don't know if Seph will ever learn to accept Pearl as he has accepted Kita, but hopefully they will learn to live in harmony. Pearl is a wild card to him right now, but the one thing Seph can count on is that Kita will not let Pearl hurt him or our other cat Zoey in any way. Kita knows Pearl can be rough, so he watches her like a hawk, ready to run and pull her away if she bothers one of the cats for too long.