Daily Joke: Saving Lives

New medical students were made to take an extremely difficult class in physics. One day the lecturer was discussing a particularly difficult concept. A student rudely interrupted to ask, “Why do we need to learn this stuff?” “To save lives,” the lecturer responded quickly and continued. A few minutes later, the same student spoke up again. “So how does physics save lives?” he persisted. “It keeps idiots like you from graduating,” replied the lecturer.