Chinese man hurts a pregnant woman

As caught in a surveillance camera, I hate to watch this, a pregnant employee woman from a fast food store was brutally kicked and punched by one of their male customer. I just wondered why her coworkers doesn't save her.
According to the news. The incident happened when the man's girlfriend ordered an ice cream cone from the fast food store which is not available. The furious man decided to go to the fast food to confront the store manager.