Instruct: Classify a given Amazon review as either positive or negative.
Query: NOT safe...

I put the collar on my beagle this weekend to help with nuisance barking. I thought it would be okay to give her a little shock when she barked. The first time she wore it it was just for a few minutes, and she barked twice and then we took it off. The second time I went to the bathroom and she started barking, and it shocked her and then she yelped, then it shocked her again, and yelped, etc. It was SO STRONG that she started spewing vomit, and was very panicked. I tried to calm her down, but I couldn't because she kept yelping. The only way to get the product to stop was to get it off of her, so I had to get her to stand near me for long enough to undo the buckle, which was very hard to do. It would have been nice if there was a remote included as well for situations like this when you just need it to shut off. I will never use this product again and am returning it as I do not feel it is safe to use.