We all know that having to poop can get in the way of our fun, but when you gotta go, well, you go. Apparently, kids don't always feel this way, and some are afraid to poop and tend to hold it in. It Hurts When I Poop by Howard J. Bennett is a book about a kid named Ryan whose fear of experiencing pain while he poops encourages him to hold it in, thinking it will all just magically disappear on its own. Of course, he can't do this forever, and eventually he has to do the deed. So, as the story goes, "Sometimes it came out as hard little balls. Other times in came out as one big ball." Yes, that's an actual quote from the book.
Within the story is a second story told by little Ryan's doctor, which can be heard in this dramatic reading on YouTube talk-show Good Mythical Morning, if you're looking to traumatize your children for life. It's about a coyote who doesn't clean up after himself, basically grows up to be a hoarder, and has a house so full of garbage that it's about to explode. If you haven't figured it out yet, it's all an analogy for what happens when you hold in your poop. So, if you want to scare the crap out of your kids (literally), read this story to them at bedtime so they'll think you explode if you don't take your daily poo.