I help my sister babysit on occasion. The 2 little girl I help with are 18 months and 2 yr old. The 2 yr old has not even started potty training and will take off her diapers and run around naked. It's gotten so bad that to their parents have cut off the feet on her sleepers and zipped her into them backwards. This is just to keep her diapers on. I inquired about potty training and it didn't sound like they had any intention of doing so any time soon. Would it be wrong of me to start potty training while I'm there which is maybe 1 or 2 days a week?