In Franz the metamorphosis when mr Samsa first sees Gregor transformed into an insect he makes a fist at him as if to punch him. What does this action show about mr Samsas attitude toward his son?

This shows that he doesn't have any compassion for his son. He is angry at him because he can't go on work, and fulfill the rest of his family duties, and doesn't care about Gregor's feelings about this strange and awkward situation.