I started carrying spray when a neighbor's dog attacked one of my dogs and bit a hole in her neck wide enough to slide a pencil into. The neighbor's dog is some sort of terrier that they used to let run around my apartment complex all the time. One day I was walking my dogs and the little bastard was running around loose and decided to stalk us. I let it get in close enough , then blasted it in the face with a stream of pepper spray. The dog stared at me and seemed to be contemplating the situation, then took of running around one of the buildings. A few seconds later it was running back past me at full speed with it's face buried in the grass, trying to rub the spray out it's eyes. I made my way back to my apartment with my dogs, but right before I got there the little bastard snuck up on me again and cut me off to my apartment door. At this point I noticed the dog's owner walking my way in the parking lot. I told her that her dog was right in front of me and that I had just maced it. Instead of coming to get her dog she just stood there in the parking lot having some sort of anxiety attack. In the meantime, her dog started sneaking in on me and I blasted it again with pepper spray. I guess it decided it had enough and ran to it's owner, who scopped it up and ran her face through it's mace soaked fur. Well, I got the hell inside because I figured things were really about to get bad once the owner's eyes started burning. In the end she complained to the landlord and the landlord told her to keep her dog on a leash.