(Reader— if you have not watched the film I suggest you watch it before reading my comment.)
At first I didn't think that this little film had any relevance to the topic of this forum, but then I was touched by the ending. The boy at first did not connect with Mr. Katz— it was clear that he would rather avoid him. But, in seeing the man's sadness the boy connected with him— in his childish way he found compassion.