Ponyboy is quick to realize that it was probably his and Johnny's cigarettes that caused the fire at the abandoned church, and when he realized that there were children trapped inside, he was quick to act. He "started at a dead run for the church," and broke out a window and climbed inside. He successfully carried two or three children to safety before the roof caved in behind him.
Pony also accepted responsibility for the death of Bob Sheldon in the park. For a while, he refused to admit that it was Johnny who had killed Bob, telling Randy that "I had the knife. I killed Bob." By earlier deciding to return from hiding and face the consequences of Bob's death, he agreed to bide by the results of the court hearing. When he found that the arguments with Darry were affecting Sodapop, Pony and Darry agreed to stop their feuding for Soda's sake.
When he discovered that he might fail his English class, Pony eventually decided to complete the essay that his teacher had required him to write. He finally came up with a topic: He would write about his experiences with Johnny and Dally and their deaths--the basis for The Outsiders.
He said that Johnny's death was his fault, he said he killed Bob, and he wrote an essay to raise his grade.