Bart's upside down mother story.

Once upon a time, there was a young boy named Bart Simpson. Bart was an adventurous and curious youngster who always loved to do daring and unusual things. One day, Bart had an idea. He wanted to see if his mother would be willing to do something unusual for him at school. He asked her if she would be willing to do a cartwheel on the school playground—upside down! Much to Bart's surprise, his mother agreed. She put on her best dress and proceeded to the playground. When Bart saw his mom, he was in shock. She was wearing a dress! But Bart's mom bravely did the cartwheel, and although she was embarrassed when her dress flipped up, she didn't care. She was just happy to be doing something to make her son happy. Bart was so proud of his mom for doing the cartwheel and never caring about her dress flipping up. He knew that no matter what, his mom would do anything he asked. That's the kind of bond they had.