While there are many causes for childhood constipation, withholding due to anxiety is undeniably a leading culprit. In my opinion, as a parent, fear - due to a lack of understanding of digestive processes - heavily contributes to this anxiety.
When you love a book, the ending of the story doesn’t necessarily finalize your journey with the characters. You create sequels, prequels, and alternate endings in your imagination. You feel justified filling the gaps in their story. After all, you've glimpsed their thoughts, shared their hopes and dreams, witnessed their first kiss, and held them in their darkest hours.