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?” one young man blurted out.
“To save lives,” the professor responded.
A few minutes later the student spoke up again. “So how does physics save lives?”
The professor stared at the student for a long time without saying a word. Finally, the professor continued, “Physics saves lives because it keeps certain people out of medical school.”
I'm a driving examiner for the state of Indiana, and while I was giving a road test to a young man, he went through a red light without stopping. I told him that he had automatically failed the test.
We met up with his mother back at the office, and I explained what had happened. At first she was speechless. Then she asked incredulously, "He ran a red light?"
"Yes," I replied.
"Well," persisted the mom, "how red was the light?