I got hit by a car.

[andre555]

..., keep a big margin of safety, and assume the worst.

Second that!!! Most important rule, not only in China but everywhere. Here are just more opportunities to apply.

When I was 18 and made my driving license my teacher told us and made it mandatory to assume:
"That everybody on the road is stupid and always be ready for that. The car in front of you/the car heading in your direction/the pedestrian right hand side/the bicylist behind you/... is an idiot."

This rule applys everywhere and even more so in China.