Hello, I personally think you should learn to put yourself in the other's shoes. In fact, it is not easy to be a small boss. The basic expenses that you need to bear every day to open a small restaurant are industrial and commercial tax, rent, water and electricity, employee's salary and so on.
So your boss may not think too much, nor be too narrow-minded, but he is under too much pressure. After all, no business spends so much money every day …