The absolutely true diary of a part time Indian

In the book I'm reading it turn from being a happy book and then a sad part happen their family was poor and they could not pay for the dog to get it treatment so the kid told his parents to help him.but they said he be alright but the kid new they were lieing he wanted to take him but they told them the truth that he was in so much pain and they dident have the money to pay for the treatments. so his mom hold him back and his father got the shock gun and went to the dog but the kid stated running away but all he hear was the one gun shot bullet as he was running and that was a really sad part in the book.