Video: Tubby Chinese pitch invader fails in attempts to deck ref
Using the most rudimentary evidence at your disposal in this video you will able to deduce that the well-built pitch invader intent on taking a swing at the referee is not only slower than the aforementioned match official, but also slower than the stadium security.
The intruder is sold a neat dummy by the ref, causing him to collapse in a heap. And he gets a second mouthful of grass when the stewards get their hands on him.
We dare say his human rights are being violated as we speak because you probably get more than a football banning order if you do this sort of thing in China.