"Canadians will literally punch people in the face for that."

When that happens I will usually walk straightforward into them. I'm taller and bigger than any Chinese out here. When I do so they will yell "Ayaaaaaaa!" very angrily, but then I just keep walking out as if nothing was. Some of them tried to chase me down a couple times, I looked down at them with a "Whatcha gonna do?" face, which is enough to scare them away since I'm taller and bigger than them.

This and many other things. I will never wait for my neighbors when I see them walking down the hallway to the elevator, because they never wait for me. I will push and shove and elbow while in line. I will bump into people while walking down the street. I believe I am well integrated now, a true Chinese, "while in Rome".