Talk to me「I don't know anything.」(2)

"Didn't you say it just now!"
"Oh, can you listen to my understanding of 'nervous' and 'mentally ill' and the difference between them?"
"Well, yes, you can say it."
"I think "mental patients" are a civilized name for "mental patients". Of course, this is also formed under the humanitarian framework. In fact, mental patients and mental patients are essentially the same, that is, real lunatics, what do you think?"

"No, I don't think so. In short, mental patients have not done anything that hurts the world, but psychopaths often hurt the world and innocent people!"
"So how to distinguish mentally ill people from psychopaths?"
"It is the mentally ill who stays honestly in a mental hospital and take medicine for treatment, and it is a psycho who always runs out to kill a demon."
"Then can you give a brief example?"