Once upon a time, there lived a man named Pak Pesut in a village in East Kalimantan, precisely near Mahakam river. He was wealthy, but stingy. He never helped the poor, or even mingled with them.

    During a very long dry season, people lacked water to plant paddy. They decided to find a new place and offered Pak Pesut a place. However, he arrogantly declined the offer and told them that he had abundant rice to survive.

    In the meantime, the people found a new place near a waterfall to settle and begin a new life. They lived prosperously and happily. On the contrary, in the village, Pak Pesut began to worry about his life. His rice stock was decreasing.

    One morning, Pak Pesut's wife was cooking rice in the kitchen. Suddenly, a poor man knocked on the door to ask for rice. "Please show mercy upon me. I am hungry. Give me a little rice please," begged the man.

    "Go away! I don't have enough rice," said Pak Pesut, lying. Then, he immediately asked his family to eat the rice. He worried that the poor man would enter his house and steal the rice.

    "We can't eat the rice, Dad. Mother is still cooking it. If we eat the rice, it will be very hot," said his son.

    "I don't care! If we don't eat it now, we will never eat again," replied Pak Pesut.

    After that, Pak Pesut and his family ate the rice. It was very hot and they needed water to drink. They rushed to Mahakam river and jumped in. The poor man saw the incident. Then, he prayed to God to punish Pak Pesut and his family. Amazingly, Pak Pesut and his family turned to fish. Since then, people called the fish Pesut.

Why did Pak Pesut feel worried after a while?