Sixth grade science teacher Mrs. Samson asks her class: ""Who can tell me which organ of the human body expands to 10 times its usual size when stimulated?"" Nobody raises a hand, so she calls on the first student to look her way. ""Mary, can you tell me which organ of the human body expands to 10 times its usual size when stimulated?"" Mary stands up, blushing furiously. ""How dare you ask such a question?"" she says. ""I'm going to complain to my parents, who will complain to the principal, wh…