According to what you said, your injury should not constitute a minor injury, so the customer should bear the civil liability for compensation, that is, he can ask for payment of medical expenses, lost time and so on. If the injury is serious enough to cause minor injuries or more, the customer needs to bear criminal responsibility;
In addition, customers should also be punished by public security;
4. Suggest a claim, you can file a lawsuit on it, or you can report it to the Judicial Bureau and the Lawyers Association at the same time;