Hi! Just would like to inform you that yesterday I became a witness of a dog’s aggressive behavior in my and my neighbor’s direction. Yesterday, at about 6 pm, right at the entrance of our 180 building, I met one of our residents (I guess she lives on a second floor.) who was with a pit-bullpitbull breed of a dog. Suddenly that dog started very aggressively barking at me and began to wrestle out of her hands, almost slipping out. I immediately stopped and stepped back. I really was scared. The owner decided to go back into the building where we faced our neighbor - and this dog began the same aggressivelyaggressive barking, and it scared her too.

This is not the first time when I notice some unusual behavior of this dog, but for thisit was the first time I personally was involved in such a stressful situation. This breed of dog is potentially very dangerous because they have a fighting disposition and very aggressive behavior, and it is unsafe to keep it in our building where live with so many kids.
I am kindly asking you to take measures on that problem before this dog bites somebody. I understand this could be complicated to issue any kind of animal restrictions, but it is possible to make owners have a mouth cover on their animals while they are in public areas of the community, especially on this breed of dog. 

Thanks.