In the daytime you might find him prostrating to a Buddha statue, and at night chopping it up for firewood. He might free an animal ready to be slaughtered and then sit down to a hot bowl of chicken soup. There is no standard of behavior you can measure him against.
There was a modern Ch'an master called the Living Buddha of Gold Mountain. A rich man asked him to help his daughter who was dying from tuberculosis. The doctors had given up on her. When the master reached her bedside, he gathered her in his arms and kissed her full on the lips. She struggled to get away, and others tried to stop him, but he held tight for ten minutes. Then he let go, turned around and vomited a pile of putrid, black filth. The people were shocked and disgusted. They asked how he could stand to suck it out of her. He said, "What's so awful about this? As a matter of fact, it's quite good." He scooped the filth up, fried it and ate it. By the way, the girl was cured.
I do not think you would consider him an ordinary person. What he says and does may have no rhyme or reason, but you do not have the power of practice to understand. His actions are backed by the experience of long-time practice. You cannot understand him, much less imitate him. If you kissed someone dying of tuberculosis, you would probably die too.
Setting up the Dharma banner, establishing the basic principle,
Ts'ao Ch'i clearly followed the Buddha's decree.
The first one to pass on the lamp was Mahakasyapa;
In India it was transmitted through twenty-eight generations.