Returning to the diaper bag she pulled out a thick plain white diaper. Cody noticed it was much larger than what would be suitable for her normal charges; he wondered why she was carrying around one so big. What purpose did it serve; he paused to look down at his slimy groin. Obviously its purpose fitted him perfectly but it wasn’t like he was expected to go on this trip. He had just followed the bus schedule and ended up on the wrong bus, the one his mother had printed off for him. Unless there were others like him at this school, older kids who still needed diapers. But how come they weren’t on this trip, he would have seen at least one of them by now. It still wouldn’t explain why she bought them along on the field trip.