Saves Lives
A college physics professor was explaining a particularly complicated concept to his class when a pre-med student interrupted him.
“Why do we have to learn this stuff for a medical degree?” the young man blurted out.
“To save lives,” the professor replied before continuing the lecture.
In a few minutes, the student spoke up again. “So how does physics save lives?”
The professor stared at the student for a long time. “Physics saves lives,” he said, “because it keeps the idiots out of medical school.”