Arguing with someone, he has high blood pressure and is now paraplegic. Am I responsible?

You said that the other person got sick during the quarrel because of his high blood pressure, and there is no causal relationship between your friend's quarrel behavior and his illness. To say the least, even if you know that the other person has high blood pressure, you can't judge whether your behavior will inevitably cause the other person's high blood pressure attack. The consequences are unpredictable and the possibility of exceeding expectations. Therefore, your friend's criminal responsibility is not at all. As for civil liability, I personally think we should bear a little bit. As for how much, it depends on the cause and process of the matter. This practice of the other child is very unreasonable. Next time you block someone, call the police. Like their home, it is very unreasonable. Tell your friend not to pay the current compensation, or it will be a bottomless pit. You can sue the court for mediation or judgment, and the compensation problem can be solved once and for all. Otherwise, I think the other family will come to your friend for money from time to time. Specifically, you can go to the lawyer's port for one-on-one consultation with local lawyers.