The robot in this story was really atrange!! I felt a little scared.
In this story, he was so thirsty. He had been looking for water desperately and found it. However, there were a fish in it. Though he finally helped it putting it into his water tank, he almost deserted it instead of getting water for himself. I thought it implies human instinct. Water is the most essential resource for human beings. It may represent that we even sacrifice others in order to gain something we really need.
Though I have never experienced that I almost die because of thirst, I would do the same thing like the robot if I couldn't drink water for a long time.
