“My 1 1/2 yr. old Burmese is, or was, quite laid back. Three months ago I found an 8-week old abandoned kitten and brought him home. My Burmese was not pleased, at first, but after about 3 days, they became fast friends. My male Burmese cleaned him and slept with him and taught him all of his devious ways. But, today, I took them both to their Vet. My Burmese was due for his yearly check-up and the kitten was due for his 3rd round of kitten shots. Since we came home, my Burmese has been very aggressive toward his "little brother". He is hissing and screaming at him. He wants nothing to do with him. Baby brother is perplexed and so am I . ”