He gets mad and throws a piece of meat at Simon and tells him to eat it. Simon does.
Jack bullies and ostracizes Piggy for criticizing him, often resorting to physical or verbal aggression. He tries to assert dominance and control over Piggy to maintain his power within the group.
He hits piggy across the face
After Ralph slashes Piggy with water, Piggy yells at him for being unkind and immature. Piggy also criticizes Jack for becoming ruthless and embracing violence as a leader.
Jack took Piggy's glasses.
Jack and his followers steal piggy's glasses.
Roger and Maurice are the ones that attack Jack and Piggy because Jack wants Piggy's glasses.
piggy's glasses
After Jack leaves to go to Castle Rock, Piggy becomes more confident with himself, and starts to stand up for himself. This happens because Jack stole Piggy's glasses, and now he can no longer hide behind his disability of not being able to see.
Piggy
Jack initially dismisses Piggy and the influence he has on the group. He belittles Piggy's intelligence and continually undermines his authority in order to maintain control over the other boys on the island. Eventually, Jack's treatment of Piggy escalates into physical violence, culminating in Piggy's tragic death.
When Jack said he didn't hunt, Piggy mocked him by saying that Jack couldn't hunt as he was just a boss. Piggy implied that Jack was incompetent and only good at giving orders, not actually participating in the hunting.
Jack orders the boys to kill Piggy and Ralf.
Both Jack and Piggy, are stubborn English boys of about 12 years old and symbolically represent groups of society and parts of the human thought, but Jack and Piggy's similarities end there
Jack and his tribe.