Captain Defenestrator

Corrected entry: The story says that Mary Poppins comes to help Mr. Banks fix his flaws as a father. Although during the song, "A Man Has Dreams", it's actually Bert who makes Mr. Banks realizes his flaws rather than Mary Poppins, and even in the story Mr. Banks says that Mary Poppins made everything worse for him, so actually Mary Poppins isn't the real hero in this story, it's Bert.