Sometimes, it takes a really long time for diapers to get totally filled up and super stinky. Often, it does not take much time at all! I have plenty of adult babies who start out making little bitty messes in their diapers and they smell so bad! Lots of times, the diaper lovers who spend all day in diapers will leave me the biggest mess of all! I know that they save up their messes so that I have lots of extra work to do when it comes to doing their diaper change. I can always tell before I have even opened those diapers up. A mommy knows when their baby’s diaper is messy. When they waddle over to me with that huge saggy bulge in the back, it takes the softest squeeze and a whiff of that smelly diaper for me to know that it is much overdue for getting changed.