I will try my best to squeeze you in my daily work and give you less money, especially when I leave my job. If you lose your salary for a day or two, you will get sick, and then deduct money from various aspects, such as the employee handbook and work card given to you when you join the company. If you don't pay when you leave, they will deduct your money and won't remind you to pay. You won't know about it until you leave, but it's not worth running back to return it.
Five insurances and one gold are also low salaries, and the salary of 8,000 is only paid at the base of 5,000. Besides, they can play dirty tricks. For example, when the salary rises from 6000 to 7000, the contract will change. However, if the increase is so small, they will definitely feel sick and quit, and then they will give you more money. But this time, they won't give you a raise in a written contract. They only verbally agreed to you, but when you leave your job, you won't be paid this part of the verbally agreed salary. You have no evidence and no choice, but hold your nose and admit it.