Because everyone else has left him, all Johnny has left are his stories. In a final act of rebellion, he torches his home. In a practical sense, this ensures that the police won’t be able to find any incriminating evidence. But symbolically, it also allows Johnny to exercise control over his life one last time. When Johnny calls upon the giants, it reveals his desperation. However, the story of the giants is made up, and Johnny’s pounding on the drum won’t summon any mythical protectors to his aid. As such, his final gesture is both passionate and pathetic.