Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great for small dogs and cats... but

After 1 week of using the medium ScatMat, I have found that it works great for my 2 cats, my Yorkie, and my 2 mixed pups (half Yorkie, half Jack Russell)..., but my Jack Russell just walks right over it, even on the high setting. I did notice that she lowers her ears when she walks over it, so it she is getting a charge, but Jack's can be determined dogs. I just ordered a large mat, to use on another doorway. My hope is that a little more time spent crossing the mat will cause her to think twice...