I have been here twice, both at night time around 6-7 pm. The workers yelled and joked around with each other loudly in Chinese. That's fine. What's not Ok is I hear a lot of Chinese profanity. I know that perhaps many could not understand those words, but Chinese customers do! I felt very uncomfortable and I suspect this is just their work culture. Those shouting workers were front line at the food section and bakery, not in the back.