Joke by professor

A collage physics professor was explaining a particularly complicated concept his class when a pre med student

Interrupted him. Why do we have to learn this stuff? The frustrated student blurted out. To save lives. The professor

Responded before continuing the lecture. Afew minutes later the student spoke up again. So how doess physics save

Lives the professor stared at the student without saying a word. Physics saves lives. He finally continued , because it

Keeps the idoits out of medical school.