He Gonna Do It is the nineteenth story in Jellyfist. Like Little Thing Lost, He Gonna Do It is a long set for the final joke. A kid seems to be bored, and suddenly says he is going to do it. The adult immediately orders him to "don't do it", but the harder the adult insist in him to don't do it, the kid insist more in doing it. The adult ends up slapping the kid and the kid says he won't do it, but as soon as the adult sits and becomes suspicious, everything starts to be consumed by the shadows and it's revealed that the kid shut down the existence.