Editor’s note: Do you need something to smile about? Every day, WND selects the best joke offered up by readers and contributors to its Laughlines forum and brings it to you as the WND Joke of the Day. Here is today’s offering:

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?” the young man blurted out.

“To save lives,” the professor responded before continuing the lecture.

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. “Physics saves lives,” he said, “because it keeps idiots out of medical school.”

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Got a great joke you want to share with the world? Write it up in the WND Laughlines forum. Who knows? It might be selected as the WND Joke of the Day – and your wildest dreams will come true.