Instruct: Classify the given review into positive or negative sentiment.
Query: Works better on cats

I bought this because my kids are afraid of dogs and some dog owners don't seem to care.What I found is that, although dogs will generally jerk their head around when I press the button, it doesn't seem to phase them much. I even held it within a few inches of a neighbor's barking dog, and the dog just kept on barking, although another dog in the same yard retreated back to the house.It does, however, make my cats jump and run, which may be useful to some people.