So sorry u have a little "monster". I have two. they are 7 yrs old. also black/tan. One is a long hair and the other is a smooth coat. They are both males and neutered. They are my little shadows and lap warmers. But its my 2 1/2 lb. yorkie that rules. She is 5 1/2 yrs old and is a sassy little snot. But they are my "kids" now that my baby is in his 3rd yr of college. They give me lots of luv and keep me company when hubby is working (which is all the time). Good luck !