- They may encounter bad neighbors, who are extremely noisy or not know how to keep the environment clean. Worse yet, we might end up being disturbed by them. Of course, things like this happen very seldom because the people of the big city are quiet conscious,... 

_Đây chỉ là ý kiến riêng của bản thân mình. Học tốt:3

the people can have some problem with their neighbours in a big city like:

- Steling yours rare antiques or some money

- or it's veering off into your property

-  Maybe it's a severe alcoholic who is verbally and physically abusive to those in their life.