If the quality is poor enough to affect the exercise, such as shouting loudly, you can take away the equipment you are using without permission, occupy the equipment, make the equipment rattle and so on. , and can be stopped directly. After all, the gym is a public place and the equipment is public. If you still don't listen, you can ask the gym staff to stop and try to avoid direct quarrels, because we don't know what the purpose of his going to the gym is, but we know that we are going to the gym to exercise. If arguing with him affects the mood of sports, it will be a bit of a loss.