My middle daughter has to do a report on a medical scientist who invented something or whose research benefited mankind. She had no idea where to start, so I made some suggestions - Linus Pauling and his research on Vitamin C, Dr. Jarvik and the artificial heart, the guy who invented penicillin... but none of these interested her.
So I asked her, "Well, can you think of a medical invention that has made a big difference in the lives of people around the world?" She thought for a minute and said, "Laxatives?"
She's brilliant, I tell you. And she makes me laugh to boot.