In our culture, if you smoke in their home, you are a bad guest, but if they don't allow you to smoke in their house, they are not a rude guest.

在我们的文化中，如果你在他们家里吸烟，你是一个坏客人，但如果他们不允许你在他们家里吸烟，他们不是一个粗鲁的主人。