The Good Fairy

The Good Fairy is the antagonist, but the heroine, of the children's song "Little Bunny Foo Foo", with the titular protagonist being the villain. Every time Little Bunny Foo Foo hops through the forest, scoops up the field mice, and bops them on the head, she tells him off, giving him three chances and subtracting one for every time. When he uses up his last chance, she turns him into a goon.

Of course, in both of Xuxa's versions (Portuguese and Spanish) the villainy was kissing the field mice, though it hurts due to his buckteeth, and the Good Fairy's lecture is longer. At the end, as "threatened", the penalty for disobeying the Good Fairy is that she turns him into a duckling.