How does Laertes's character develop between Act I and Act IV of the play?

In Act I, Laertes respectfully asks Claudius for permission to return to France and behaves like a dutiful son and courtier. In Act IV, after learning of Polonius’s death, he storms back seeking revenge and is willing to defy rules and authority to get it. This change matches “calm and dutiful” to “vengeful and does not care about rules.”

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