Sure it "happens", but do you see it on almost all of your commutes? When someone does something dumb ass in the states, everyone is shocked and surprised, in Beijing it is just normal and should be expected (as a benefit, everyone is driving like everyone else is crazy).

(And I wasn't driving, rather sitting in the taxi, but I digress)

Bad driving behavior exists everywhere, but in China it's much more common than in the US. Left turns from the extreme right lane (and vice versa), is another common thing you'll see. In my experience, the drivers in Beijing are better behaved than those in Qingdao. Lane changes without signals (while you're in the lane) are also really common.