Mary Ellen Popowski is a minor character in the Big Nate Series. One time in Big Nate: In a class by himself, Teddy and Nate had a squid In science, and Teddy pretended it was a giant booger. The two boys laughed so hard that they dropped the squid on the floor. Then Mary Ellen Popowski came and accidentally stepped on it. Not to mention that Mr. Galvin came and started shrieking at the boys. Mr. Galvin made the boys apologize to her, and gave them a few weeks of detention. They said sorry, but she kept whining that her shoes smelled like dead squid. Nate said "Maybe it was an improvement on how they smelled before." And then they had to apologize again.
