Amir and Hassan both got into trouble by climbing up the poplar tree and shining light at the neighbors with a broken piece of glass. the would eat berries and nuts and have fun until Ali would catch them. Hassan always took the blame and never told on Amir.
Baba explained to Amir that the only crime there is, is stealing. he says "when you kill a man, you steal a life. you steal his wife's right to a husband, rob his children of a father. when you lie, you steal someone's right to the truth, when you cheat, you steal the right to fairness."
Hassan and Amir grabbed a book, went north of Babas property, and near the entrance of a cemetery, there was a pomegranate tree. they carved the words "Amir and Hassan, the sultans of Kabul" to make it official that the tree was theirs
Assef, Wali, and Kamal, all of which towered over Hassan and Aimir, walked over to them and asked how Hassans Father was. The boys then proceed to scare Hassan and Amir due to the fact that Assef was known for his brass knuckles and fighting many kids. Assef wanted to tell Daoud Khan about how great of a leader Hitler was.
Amir was sad because if he wanted a bigger or better kite, Baba would buy both Hassan and Amir the same one. Amir didn't understand why his dad did this, and Amir was slightly jealous.
Wali and Kamal helped Assef degrade Hassan. Amir did nothing to help, and acted like he didn't see anything. Hassan didn't say a word and Amir brought the kite to his father