When I first started out, I was interviewing for a 1 yr old girl. they asked me 'how often do you change a child's diaper". I said "ummm, when it is dirty?" LOL
They had been around to other centres where they only change bums 3-4 times daily at schedules times and if they poop in between these 'diaper change times' they child would have to sit in it until the next time.
Ive never heard something so silly.