On a cold winter's day, the farmer who was on his way home found a snake by the side of the road, thinking it was frozen, so he put it in his arms. The snake was frightened, and when he was fully awake, he instinctively bit the farmer and killed the farmer. The farmer said regretfully before he died, "I want to do good, but because my knowledge is shallow and I have killed myself, I have been punished by this."