My second child tries to be strong-willed but I've explained on many occasions that mommy is more stubborn and she must listen to me, period.
At any rate, I had one that I started watching when she was almost three. She came over in pull-ups (I don't like them except for special trips to the store). Anyway, her mom told me that she had tried to go poopies before she came to the house (she liked to hide and do it in her pull-up)...so I told the little miss that I would go get her some panties because big girls didn't wear diapers in my house.
(I always call pull-ups diapers and explain to my little ones they aren't big until they wear underwear).
So before I got back the little stinker pooped in her pull-up. When I got back with panties, she told me she didn't need those anymore because she already went.
So I took her in the bathroom gave her a box of wipes, a plastic bag, and told her to clean herself. She just looked at me like I was crazy. I told her that she made the mess and she would have to clean it. I explained that I didn't clean big girl bottoms because it was nasty. She just looked at me like I was kidding.
So I un-did her pull-up I showed her how disgusting it was, then I put a wipe in her hand and I guided her hand to clean her own bottom. Each time I showed her the wipe and told her how gross it was and that if she went in the potty the mess went right in and her bottom would be real easy to clean.
When we were done I put panties on her. She wet herself one time and I told her that was okay, but I had her help me clean up the carpet with carpet cleaner and I put new panties on her. I reminded her every 15 minutes that she had on panties and had to go on the potty. By the end of the day she had that down pat.
(Normally I would have a day naked in the bathroom so they can see and feel the pee pee come out and understand the feeling and know what I"m talking about...but she was older and did know) This is a child that wanted to go play in my daughters' playhouse but her mom told her no because she was wearing panties and she wouldn't go potty on the chair. Her mom told her she couldn't play in the dollhouse until she went potty because she might have an accident in the playhouse.....so she very defiantly looked at her mom and proceeded to pee in her panties standing in front of her mom.
Anyway, she went pee pee on the potty by the end of the day no problems. She wouldn't go at home though. So the next time she came over I didn't tell her I was getting the panties and I made her put them on...she tried to complain a little. I knew she had to go poopies...she was trying to hide before she left the house. When she wanted the pull-up back on I took her in the bathroom and I sat her on the potty. She tried to get down and she cried but I just held her on the potty, hugged her and kissed her face and kept telling her it would be find and nothing would hurt her. She cried, but she went poopies and we cleaned her up likety split and we cheared and the kids cheared and I gave her a chocolate chip. I showed her how easy it was to clean up and it wasn't nasty at all.
The next day, the same thing. By the third day she told me she had to go and she got up there all by herself. She wouldn't go at home for about a week, but then decided that she wanted to be a big girl at home too.