What should I do if I meet a drunk and disturb my neighbor?

What's the difference between suing drunkards for insults and suing mental patients?

You can't hit him. If you break it, you will have to pay for medical treatment.

Making trouble means dragging his family to coax him home+when his family is away, ask neighbors, neighborhood committees and police for help (don't be embarrassed, at least you have a personal ID card).

Basically, people who drink and make trouble are usually timid people, or people who are not good at solving problems when they are awake. It's best to take care of them.