its our hospitality for your guest, not that small country like Vietnam would understand.
Vietnam president would probably have his face inside of a bowl of Pho during dinner with a foreign head of state, but thats not how the civilized world does it.
My post in the answer for your guy who posted the pic below.
here is my answer to you Chinese. if it is necessarary Chinese panda could taken on her head a coyboy hut. This actin disclosed true mentality of Panda. Low IQ chinese can't understand what does it mean.