There is a kettle with a mouth on the back window of the room. What do you care about the people behind the room?

The location of the spout should be in the direction of no one, because in tea culture, if the spout is facing people, it will mean to send guests off or despise the person facing the spout, which is very impolite. In the folklore handed down from China, it is emphasized that the spout does not flush people. Legend has it that Confucius worshipped Lao Tzu as a teacher and offered tea to him, but Confucius pointed the spout at Lao Tzu, and the teacher was furious and failed to teach him.