Some dogd just don't like certain people. My parents dog does not like my, likes everyone else but will growl and try to bite me. Even though I've attempted to make nice with her by giving her treats. Normally any other animal will come right up to me but for some reason this one doesn't like me.
My old neighborhood there was a dog that always got loose and one day as we were in the back yard it came running fast up to our gate. I walked over to the gate and swung at it trying to give it a tap on the nose and told it to go away. The owner pulled up and glared at me as she saw that so I pulled out my cell phone and held it out so she could tell I was ready to take a picture and she called the dog and left. I figured if my neighbors little yappy dog could make it over the fence this bigger one could too and I had no way of knowing if my kids were safe or not.
If that lady had said any word to me I was calling the police as that dog had charged other people before, some other lady pushing a stroller looked at me and told me to restrain my dog as the real owner pulled up to get him when he came charging out from around the other side by my house.
Unfortunately thats the kind of person that shouldn't have a dog which seems to happen a lot in the city anyway. people get the pet and then its too much work to keep up with the walking so it gets neglected then the dog gets over excited.