There is such a person in the unit who laughs at you. He can hurt you, but you can't fight him back. If you fight back, he will hate you, ignore you, complain to the leader, and lead.

This kind of person just ignores him, which goes in one ear and out the other. This is the world. There is really no need to dispute with irrelevant people. Finally, if you are angry with yourself, others will not have nothing, and even if you are angry, you will be complacent. Therefore, the best way is to ignore him. When he is air, he will naturally feel bored and won't bother you for a long time.