Why can't you sit on someone else's bed when you go to their home?

Sitting on the bed is a rude behavior. A friend once told me about this incident. A group of relatives came to his house to play. It seemed that too many people came and there were not enough seats, so the relatives all sat on his bed to play cards and chat. The quilts and pillows were folded and arranged in a mess. The most egregious thing was that someone actually hid chewing gum under the bed and even picked up nose excrement and smeared it on the mosquito net. My friend was furious when her relatives came home, but my mother said, What’s the matter? Just clean it up and that’s it! Later, every time I went to bed, I would think of someone hiding chewing gum under the bed. I couldn't bear it! After a big fight at home, I decided to sleep on the sofa. -

The speaker is unintentional, but the listener is intentional. I was stunned by what he said, thinking that I had also sat on other people's beds and farted. Do they also secretly mind it? I don't know, and no one told me, but from then on, I refused to sit on the bed if there was a stool. If it was not possible, I could stand. -

Later I looked up the information and said that the bed represents the inheritance of the family line and the continuation of life. I have never heard of this statement. It may be because the country is "eliminating feudal superstition"! But then I mentioned that the bed is a very private object, and the level of privacy is the same as that of personal clothing. I still agree with this statement! After all, I need it every day. It has the smell of my Head and Shoulders mixed with Lux perfume, the smell of my hair and sweat, as well as the fallen scalp and uncontrollable drool. Such a "personalized" object cannot be easily sat on! Later I asked my roommate, if you go to a friend's house to play, would you sit on the bed? The roommate replied, "No, what if there is a misunderstanding when her girlfriend comes back? After all, she is so handsome!" Well, pretend I didn't ask!