A joke between the master and the dwarf

Once I went to a restaurant to eat, I met a friend who worked as a waiter in the restaurant. He came to entertain me. When ordering food, I saw a spoon in the chest pocket of his work clothes, so I was curious to ask him what it was for. He said that it was specially prepared by their boss, saying that it was to prevent the guests from dropping the tableware, which could save the guests time. I said your boss was very careful, and then I saw a transparent thread at the door of his pants. I'm here again. He said that the boss asked us to pull it out with a rope in order to save us time to wash our hands after going to the toilet. Hearing this, I have to admire that their boss is definitely a model of service industry. Then I suddenly asked, how did you put it in after going to the toilet? My friend is embarrassed to say that I don't know how others do it. Anyway, I pressed it in with a spoon. ...