Recently my wife and I got a chihuahua. We got him when he was ten weeks old, but as he grew on to us, his behavior has gotten worse and worse. He destroys everything from shoes to carpet and even wall lining. I don’t know what to do anymore. He bites both my wife and me and when she sits on the floor he pulls her hair. He has learned how to jump on our bed and on the couch. I don’t know what to do. Any advise.