When I came back, I saw 2 families from 2 different race quarreling.
The Chinese chap was like screaming over his head thinking that he owns the entire neighborhood. People still need sleep okay !

Sometimes people are so weird, they always cry over split milk. Things had already taken place, there is no point arguing or quarreling over the incident. They should instead settle down and think of solutions on how to resolve the problem.
By screaming or quarreling gets you no where, you are actually building hatred for one another instead.

How are you going to react when you see this person whom you quarreled with in the same lift ?
There will definitely be animosity between both of you.

So why don't you just give in and put your pride down, so that the world will be a better place to live in.