Naughti step

What's a nauti step? Ma was telling me that I was going to have to sit on it. I can't understand why she said I was nati cos she was laughing as she told me. Aparently the bandage on my leg was meant to be kept on. Well I didn't know that, I had such great fun rolling on my back while I grabbed the bandage, pulled it off and then to make sure it couldn't fight back I drowned it in my drinking bowl - sorted :-)