I bought this guard, dog, security police edition pepper spray for my eldest niece who is 49 years old for when she was out walking her dog and our local neighborhood because we both live together in the same house because she has had people in the neighborhood who do not have their dogs behind a fence and tied up as they are supposed to be by Law and one dog that approached her was a very muscular good sized pitbull, who thank goodness was a kind dog, but her own dog felt defensive against this dog because you can never tell how two animals are going to get along so These incidents should be avoided by a dog owner maintaining security over their dog, either behind a fence or on a chain or a leash. My niece's dog felt defensive over her and protecting her from this dog and stood between my niece and this dog, growling and burying her teeth, and she is a very friendly dog herself, and the owner was very slow coming up to retrieve his pitbull from confronting my niece and her dog. I just know that a pitbull bite is so powerful can even break human bone and I am worried about her safety not specifically against this dog particularly because he did end up being a decent dog and I have nothing against Pitbulls in general because I do know it is the owners that I end up being the problem when a dog is ever aggressive. But it is true that you can never tell just because a dog is nice with yourself in your family if that dog is going to mix well with another person's jog or even another human being so it is a risk that this owner should not have taken with his dog. It was very irresponsible. But I just wanted to make sure that she had a means to protect herself and to protect her dog when she's out and about just walking her each day multiple times, and also in case she runs into any predators within the area who may try to cause her issues so she has a means to hopefully disable them and get away in time to call me so I can come and get the two of them and help her however I would need to. I would like to emphasize to anyone who is planning on using this for protection that there are some people who can handle pepper spray even though it will bother them they can still fight their way through it to still continue the attack so I would recommend being very alert to that fact when you're using this for self-defense that there is a chance for some people who may be on drugs or severely mentally ill or even another very violent predators who it may not work on. But hopefully most circumstances it will work. So I just wanted to make sure that she was protected the best she can be for the given circumstances. This is a good quality pepper spray and police edition so I would recommend it to others to use events of self-defense.