Why do some people do old things so meanly and play jokes on others?

It seems that you have surpassed it? If you are still kind to your subordinates, if you are in the same position, you'd better try to help him. But any smart person will see that you are very polite to him. You say so, which proves that your level is average. I haven't seen it before, but I have seen a lot. Both sides have interests, it is better to smile. There are still many fools in society. After a long time, you will know what kind of person you are in other people's hearts. If I start my own business, many people will help me. How nice! I owe a lot to others. What's the use of caring so much? Focus on things and don't think too much. A lot of things are destroyed by suspicion, little brother. A lot of things don't need to be thought too much, and things should be done well. It's good to get benefits.