The 6th-grade science teacher, Mrs. Parks, stood before the class, her glasses perched on her nose, as she asked, “Can anyone tell me which human body part increases to ten times its size when stimulated?”

The room went quiet, and Mrs. Parks waited for a response. When no one spoke up, she decided to call on someone at random.

Little Mary, a very vocal and often outspoken student, stood up abruptly, her arms crossed defiantly over her chest. “You should not be asking sixth graders dirty questions like that!” she exclaimed. “I’m going to tell my parents, and they will go and tell the principal, and then he’ll fire you!”

Mrs. Parks, calm as ever, simply smiled and waved her off. “Let’s try that again, Mary,” she said, “Which body part increases to 10 times its size when stimulated?”