我: The kid walks around here by himself is very dangerous, once he walk to the escalator, he may fall down and die.
工人: is he dead? He is still here.
我: aAd he also lick at the glass.
工人: is the glass broken?
我: not broken, it is dirty.
工人: there is people cleaning here everyday, how will it be dirty? Is it your home here? Why do u know it is dirty? This is not your home, it is none of your business…..