Last month I finally decided on a puppy to buy. I got a rat terrier. She was the sweetest lil girl out of the whole bunch. Fast forward to now and I don't know what happened to my sweet girl. She's chewing the fringe on the carpet, she's picking on my dad's older dog which she never did. They got along fine before. I read that rat terriers are really easy to train. Well my Gizmo is almost impossible. She was paper trained when I got her. She goes on the paper for the majority of the time. Ive gotten her plenty of toys and things to chew but it seems she wants to chew my moms carpet and blankets. Im sure why but she has an Obsession with wanting to chew clothes and cords. No matter how many times I tell her no, it just doesn't register with her. Im not sure what to do with her. She doesn't bark thank God. Only when she's trying to beat up my dad's 12 year old maltese. FYI- The maltese weighs about 14 lbs and my little rat only weighs 5. And she's the only dog Ive ever owned that didn't understand the concept of stairs or leash. She wont climb up one small step into my room or to get out of it either. She's very hard headed. Can anyone give me some advice. She seems to be the opposite of everything I read about rat terriers.