You promised your very strict nanny you are a big boy now and can use the potty. You begged her and she reluctantly allowed you to wear training pants saying you had better not wet them you would be punished. But is wasn't your fault. You were just busy and left it too late. She was so angry with you that she pulled you over your knee to spank you long and hard. Them of course it was back to diapers for you. How embarrassing and humiliating!