Ask a lawyer to intervene in a self-defense homicide.

Questions 1 and 2. You can call the police and let them handle it. 3. A short knife is not allowed, but if you have a knife in your hand during self-defense, you can defend yourself with a short knife. Hard objects depend on certain things, so it is suggested that you can bring some hard and practical things with you

4. As long as the other party attacks you, you can fight back, but you can't go too far. If necessary, you can flee to a crowded place for help, and it is not good for anyone to make a big fuss. However, it should be noted that if the other party just provokes you, you must not start first. If you start first, others will hurt you, so it is still your responsibility. Be sure to wait for others to do it first, and then do it. If you are robbed and dragged elsewhere, you can defend yourself normally. As long as you don't take the initiative, you can defend yourself.

if the mass sacrifice team wants to stop you, you'd better hide and walk around, and don't argue with each other yet. It's best if you can walk around them. But if they surround you tightly and you have no room to move, you can defend yourself, but you can't hurt people. After getting out of the crowd, run to a safe place (police station, home, school, big store or a place with security)

5 It's hard to say, it depends on the situation at the time of the incident

6 Regarding the incident No.7, look it up on the Internet yourself, and there are many related news. If I type it now, I don't think you can read it all at once.

Finally, when encountering similar things, it's best to keep in mind the other person's appearance, as well as some unique places, such as the other person's departure route, dress and so on, so as to facilitate the police to trace them.

I'll tell you another thing. When someone robbed you of your money (only threatened you with his fist, but didn't hit you), you didn't pay the other person yourself. This is extortion, and the crime is determined according to the amount of money. But robbery is different, as long as you don't let the other person make money voluntarily, even if the other person only takes a dollar from your pocket, it is also a big crime. Therefore, you should not help those who hurt you in order to mitigate the crime. (PS: If the other party threatens you to take out the money with a murder weapon, it has already constituted a crime, so even if you voluntarily take out the money, the other party regards it as a very serious crime)

I hope the above tips will not be used for the rest of your life.