The school should handle it with sensitivity. Firstly, they should have a trained staff member, like a school nurse if available, to take the kid to a private area to change the diaper. They should also ensure that the kid doesn't feel embarrassed or bullied by other students.
One reason could be that the kid has some special needs or medical conditions. For example, if the kid has problems with bladder control due to a physical disorder. Another possibility is that there was a misunderstanding or an emergency situation at home where the parents didn't have time to change the kid out of the diaper properly before sending them to school.
Once upon a time, there was a little kid who always had a diaper on. He was so young that he didn't know how to use the toilet yet. One day, while playing in the park, his diaper got really full. His mother quickly noticed and took him to the restroom to change it. The kid just giggled through the whole process as if it was a funny game.
Once upon a time, there was a big kid named Tom. He still needed to wear diapers due to a medical condition. One day at school, he was worried that his classmates would find out. But his best friend, Lily, noticed his unease. Lily was very kind and told him it was okay. She helped him feel confident and protected his secret. From that day on, Tom felt less alone and more accepted because of Lily's friendship.
Well, in a diaper change at school situation from the story, it starts with the right environment. The place for diaper change should be clean and safe. The person in charge will approach the baby calmly. They'll have diapers, wipes, and perhaps some cream for rashes. They'll gently lay the baby down, open the diaper, clean the mess with wipes while being careful around the sensitive areas. After that, they'll dry the area a bit, put on a new diaper, and make sure it's on snugly. Then they'll dispose of the old diaper and wash their hands again to maintain hygiene.
Once, my friend was babysitting and the baby made a mess in the diaper. The mom came home early and caught the whole situation of the baby crying and the soiled diaper. She quickly took over, comforted the baby and changed the diaper with ease.
One possible moral could be about the importance of taking care of the young. Just like how the parents or caregivers need to attend to the diaper - changing needs of the kid, it shows the responsibility of looking after those who are dependent on us.
I'm not sure specifically as there could be many stories with such a description. It could be about a baby who is being changed and strapped into a diaper in a simple daily routine story.
Once upon a time in a kindergarten, there was a little boy named Tommy. One day, he accidentally wet his diaper at school. He was so embarrassed and started to cry. His teacher, Miss Lily, was very kind. She quickly took Tommy to the bathroom, changed his diaper in a very gentle way, and told him it was okay, that all little kids have such accidents sometimes. Then she gave Tommy a big hug and let him go back to play with his friends.