Instruct: Classify the given review into positive or negative sentiment.
Query: Beware if you have a small dog

For the first couple months, we only used the collar and the remote control - no fence. It worked quite well then, but we only needed to use levels 1 - 3 on the remote to correct the dog. Level 3 would make him jump pretty good, so we used it very sparingly.When we finally buried the wire and started testing, we found the lowest setting the fence allows is equivalent to about a level 7 on the remote (estimate) which was far higher than he had ever experienced. The first and only time the dog encountered this level during his training was a horrible experience that would've put him in therapy if he was a person. It is now 4 months later, and I sometimes have to get my wife to let him outside because he is still occasionally afraid to go out when I'm around.Now the remote doesn't work anymore, and I have no idea why.My dog is now weird, and in part I blame Innotek.