Ok... back history... my daughter is almost 21mths now and seems interested in using the potty. Problem is she won't take off her diaper. When she was about 14-15 months she use to take off her diaper and I would scold her for it and so she stopped and that was the end of it. But now that she wants to learn to potty she is scared to take off her diaper now when she sits on the potty. How do I coax her back into taking it off, but at the right time? HELP!